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Commentary

Early circulation of influenza A(H3N2) subclade K: antigenic drift and vaccine effectiveness
Mehreen Naz, Shah Fahad Khan Jogezai, Garzeen Ghaffar
Osong Public Health Res Perspect 2026;17(4):371-372.
Published online May 14, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0594
  • 1,785 View
  • 42 Download

Original Articles

Association between lifestyle inflammation score and quality of life according to depressive symptom status: a cross-sectional study in the Republic of Korea
Objectives
This study examined the association between lifestyle inflammation score (LIS) and health-related quality of life, assessed using the EuroQol-5 Dimensions (EQ-5D) index, among adults in the Republic of Korea. It also evaluated whether depressive symptoms moderated this association. Methods: Data from the 2024 Community Health Survey were analyzed, and 231,386 adults were included. LIS was calculated by integrating smoking, alcohol consumption, physical activity, and body mass index. The dependent variable, quality of life, was assessed using the EQ-5D index. Depressive symptoms, the moderator variable, were assessed using the Patient Health Questionnaire-9, with a score of ≥10 indicating depressive symptoms. Data were analyzed using complex-sample multivariable linear regression to examine interaction effects according to depressive symptom status, followed by simple-slope analyses. Results: After adjustment for demographic and health-related variables, LIS was significantly and negatively associated with the EQ-5D index (β= –0.0069, p< 0.001), indicating that higher levels of inflammation-related lifestyle behaviors were associated with poorer quality of life. Depressive symptoms significantly moderated the association between LIS and the EQ5D index (β= –0.01727, p< 0.001). Simple-slope analyses showed that the adverse association between LIS and quality of life was stronger among individuals with depressive symptoms (β= –0.02349) than among those without depressive symptoms (β= –0.00621). Conclusion: Inflammation-related lifestyle behaviors were associated with reduced quality of life, and this negative association was stronger among individuals with depressive symptoms. These findings suggest that considering both lifestyle-related inflammatory burden and depressive symptoms may help explain population-level differences in quality of life.
  • 2,079 View
  • 37 Download
Child health problems and social determinants as predictors of postpartum depression: a cross-sectional study using 2023 Indonesia Health Survey data
Objectives
This study examined the predictive role of child health problems and social determinants in postpartum depression (PPD), with the aim of supporting early screening strategies and more comprehensive maternal health policies. Methods: This cross-sectional study used secondary data from the 2023 Indonesia Health Survey, conducted by the Indonesian Ministry of Health. The analysis included 26,656 postpartum women aged at least 15 years who had given birth within the previous 24 months. PPD was assessed using the Mini International Neuropsychiatric Interview. Multiple logistic regression was used to analyze the data. Results: Child health problems were among the strongest factors associated with PPD in Indonesia. Having had an unplanned pregnancy was associated with higher odds of PPD (adjusted odds ratio [aOR], 3.90; 95% confidence interval [CI], 2.90–5.25; p < 0.001), as was having a child with chronic illness (aOR, 2.30; 95% CI, 1.01–5.26; p= 0.048). Social risk factors, including younger maternal age, divorce or separation from a partner, unemployment, and lack of social support, were also associated with PPD in Indonesia. Conclusion: Child health problems and adverse social conditions were significantly associated with postpartum mental health in Indonesia. Integrating early screening into maternal and child health services and strengthening maternal support systems may help reduce the burden of PPD.
  • 2,080 View
  • 101 Download
Burden and trends of mental disorders in Vietnam, 1990–2023: insights from the Global Burden of Disease Study 2023
Thanh Hoa Tran, Ngoc Thi Nhu Hoang
Osong Public Health Res Perspect 2026;17(4):337-350.
Published online June 23, 2026
DOI: https://doi.org/10.24171/j.phrp.2026.0101
Burden and trends of mental disorders in Vietnam, 1990–2023: insights from the Global Burden of Disease Study 2023
Objectives
This study evaluated the epidemiological burden and temporal trends of mental disorders in Vietnam from 1990 to 2023 and projected the future burden through 2040. Methods: Global Burden of Disease Study 2023 data were used to analyze the age-standardized prevalence rate (ASPR), age-standardized incidence rate (ASIR), and age-standardized disability-adjusted life-year rate (ASDAR) by age, sex, and diagnostic subtype. Temporal trends were quantified using the estimated annual percentage change (EAPC), and Pearson correlation analysis examined associations with Vietnam’s human development index (HDI). Bayesian structural time series (BSTS) models were used to forecast the burden through 2040. Results: In 2023, approximately 9.1 million individuals in Vietnam had mental disorders, with 2.94 million annual incident cases and 1.41 million disability-adjusted life-years. Depressive disorders ranked highest across all metrics, and females consistently had higher agestandardized rates than males. Age-standardized rates increased significantly from 1990 to 2023: ASIR, 1.10% EAPC (95% confidence interval [CI], 0.87%–1.33%); ASPR, 0.27% EAPC (95% CI, 0.21%–0.33%); and ASDAR, 0.52% EAPC (95% CI, 0.46%–0.58%). Mental disorder burden was strongly positively correlated with HDI (r =0.773–0.909, all p<0.001). BSTS models projected continued increases through 2040 (ASPR, 9,003.75; ASIR, 3,307.11; ASDAR, 1,408.05 per 100,000 population). Conclusion: Mental disorders constitute an escalating public health challenge in Vietnam, with the burden increasing steadily over 3 decades and projected to continue rising through 2040. Reorientation toward an integrated, community-based care model, alongside targeted workforce expansion and systematic integration of mental health services into primary care, is essential to mitigate this growing burden.
  • 4,602 View
  • 72 Download
Association between ambient temperature and blood pressure in hypertensive adults in Bogor City, Indonesia: a 6-year longitudinal cohort study
Puti Sari Hidayangsih, Woro Riyadina, Ika Dharmayanti, Pandji Wibawa Dhewantara, Ning Sulistiyowati, Noor Edi Widya Sukoco, Yuda Turana
Osong Public Health Res Perspect 2026;17(4):326-336.
Published online May 14, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0226
Association between ambient temperature and blood pressure in hypertensive adults in Bogor City, Indonesia: a 6-year longitudinal cohort study
Objectives
Climate variability, particularly ambient air temperature, is an emerging environmental determinant of blood pressure (BP); however, evidence from tropical lowand middle-income countries (LMICs) remains limited. We examined associations between monthly average ambient temperature with systolic BP (SBP) and diastolic BP (DBP) among adults in Bogor City, Indonesia. Methods: This longitudinal cohort analysis used secondary data collected between 2011 and 2018 from 1,648 participants with repeated BP measurements (19 assessments over 6 years). Average ambient temperature data were matched to the month of BP measurement. Generalized estimating equations models were used to assess the association between temperature and BP after adjustment for age, sex, education, and socioeconomic status. Results: Mean ambient temperature ranged from 24.6 °C to 28.9 °C. SBP varied more than DBP and tended to increase as ambient temperature decreased. The overall main effect of temperature on BP was not statistically significant. However, several visit-specific temperature–time interactions were negative and significant, suggesting inverse patterns between lower temperatures and higher SBP or DBP. Marginal effects plots demonstrated time-varying associations, with predicted SBP and DBP differences of approximately −4 to + 3 mmHg across follow-up visits at representative temperatures. Socioeconomic status and education were associated with SBP, whereas age and female sex were associated with DBP. Conclusion: Temperature variations were associated with time-varying BP changes among adults with hypertension in Bogor City during 2011–2018. Although the main temperature effect was non-significant, temperature–time interactions suggested modest inverse patterns within clinically plausible ranges. These findings support the need for updated, multi-site studies in tropical LMIC settings.
  • 2,246 View
  • 69 Download

Perspective

Dengue vaccine: a hidden risk to Aedes aegypti control in Brazil
Halison Correia Golias
Osong Public Health Res Perspect 2026;17(4):322-325.
Published online June 23, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0544
  • 1,431 View
  • 41 Download

Original Articles

Temporal dynamics, climate associations, and surveillance performance of Lassa fever in Nigeria, 2020–2025: a national longitudinal analysis
Ayokunle John Tadema, Faith Mmesoma Nwosu, Oluwatumilara Ayokunle Abimbola
Osong Public Health Res Perspect 2026;17(4):310-321.
Published online June 29, 2026
DOI: https://doi.org/10.24171/j.phrp.2026.0226
Temporal dynamics, climate associations, and surveillance performance of Lassa fever in Nigeria, 2020–2025: a national longitudinal analysis
Objectives
We examined national temporal trends, laboratory-confirmation performance, and climate associations in Lassa fever surveillance in Nigeria from 2020 to 2025, and assessed the impact of the coronavirus disease 2019 (COVID-19) pandemic on surveillance metrics. Methods: We analyzed 307 consecutive weeks of national Lassa fever surveillance data using an ecological study design. Primary outcomes included confirmed-case counts, case fatality rate (CFR), and laboratory-confirmation rate (LCR). Temporal trends were evaluated using regression models, climate associations using correlation and negative binomial regression analyses, and the impact of COVID-19 using interrupted time-series analysis. Results: Overall, 47,029 suspected cases, 6,288 confirmed cases, and 975 deaths were reported. The mean LCR was 11.2% (standard deviation, 7.2%), declining from 18.4% in 2020 to 9.9% in 2025 (p <0.001). The overall CFR was 15.5%, with no significant downward trend over time. Confirmed cases were inversely associated with weekly rainfall (rs=−0.589, p <0.0001) and positively associated with mean temperature (rs=0.462, p<0.0001). Peak season incidence was 5.3-fold higher than that during off-peak periods. The COVID-19 lockdown period was associated with an immediate reduction in confirmed cases without a corresponding reduction in suspected cases. Conclusion: Lassa fever surveillance in Nigeria from 2020 to 2025 was characterized by a declining LCR, persistently elevated CFR, and a climate-linked seasonal pattern of increasing intensity, findings that are consistent with, but do not definitively establish, systemic underascertainment. CFR trends may partly reflect case-mix variation and detection bias. Because of the ecological study design, causal inferences cannot be drawn. These findings underscore the need for resilient, climate-informed, One Health surveillance systems.
  • 1,754 View
  • 81 Download
Molecular and genetic characterization of Kudoa septempunctata from foodborne outbreaks in the Republic of Korea, 2016–2024: a retrospective public-health surveillance investigation
Jong-Hoon Choi, Sung-Hee Hong, Cha-Yoon Kim, Ji-Young Kwon, Ji Ye Seo, Se-Jin Jeong, Tae Yun Kim, Jung-Won Ju, Hee-Il Lee
Osong Public Health Res Perspect 2026;17(4):300-309.
Published online May 14, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0426
Molecular and genetic characterization of Kudoa septempunctata from foodborne outbreaks in the Republic of Korea, 2016–2024: a retrospective public-health surveillance investigation
Objectives
Kudoa septempunctata is a marine myxosporean parasite implicated in seafood-borne acute gastroenteritis, predominantly associated with the consumption of raw olive flounder. This study aimed to characterize the molecular and genetic features of K. septempunctata-associated with foodborne outbreaks in the Republic of Korea from 2016 to 2024. Methods: We reviewed 415 suspected foodborne outbreaks reported through national surveillance between 2016 and 2024. Among these, 37 outbreaks with complete clinical, epidemiological, and laboratory data from 2020 to 2024—including K. septempunctata testing and genotyping—were analyzed in detail. Results: Diarrhea (88.8%) and vomiting (61.2%) were the most common symptoms. The detection rate of K. septempunctata was significantly higher in specimens collected ≤24 hours after raw fish consumption (69.8%) than in those collected > 24 hours after consumption (35.9%). Outbreak occurrence was higher during warmer months (May–October) than during other periods, although this difference was not statistically significant. All sequences obtained from patient specimens belonged to sequence type 3 (ST3) of K. septempunctata. Conclusion: Since 2020, the proportion of reported outbreaks associated with Kudoa has increased, indicating its continued public health relevance. The timing of specimen collection is a key determinant of K. septempunctata detection, as diagnostic yield declines significantly when specimens are collected more than 24 hours after exposure. These findings highlight the need for standardized rapid investigation protocols and an integrated surveillance system linking clinical data with seafood supply-chain information.
  • 1,775 View
  • 67 Download

Review Article

Rethinking mpox: epidemiology, clinical variants, diagnosis, and response
Renu Thakur, Devendra Pratap Singh Rajput, Nikunj Rajkumar Agrawal, Abhimanyu Agrawal
Osong Public Health Res Perspect 2026;17(4):290-299.
Published online May 27, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0402
Rethinking mpox: epidemiology, clinical variants, diagnosis, and response
Monkeypox disease, now commonly referred to as mpox, was once considered a geographically restricted zoonotic disease but has emerged as a global public health concern. The 2022 multinational outbreak marked a turning point, with notable shifts in transmission dynamics, affected populations, and clinical manifestations. Classical cases typically involve fever, lymphadenopathy, and a centrifugal vesiculopustular rash; however, recent outbreaks have revealed atypical presentations, including genital and perianal lesions, minimal or absent prodromal symptoms, and asynchronous rash evolution. These variations have complicated early clinical recognition and may contribute to delayed diagnosis and onward transmission. This review synthesizes current evidence on the evolving epidemiology of mpox, highlights differences between endemic and non-endemic outbreaks, and describes the full spectrum of typical and atypical clinical features. It also assesses diagnostic approaches, including molecular and point-of-care techniques, and evaluates the efficacy and limitations of current and emerging vaccines, such as JYNNEOS and ACAM2000. Future priorities include improving global surveillance, refining case definitions, expanding diagnostic access, and ensuring equitable vaccine distribution. Understanding the expanding clinical and epidemiological profile of mpox is essential for timely diagnosis, containment, and preparedness against future outbreaks.
  • 3,203 View
  • 81 Download

Editorial

Resilient public health in a changing world: as threats expand and prevention retreats
Jong-Koo Lee
Osong Public Health Res Perspect 2026;17(4):287-289.
Published online August 25, 2026
DOI: https://doi.org/10.24171/j.phrp.2026.0615
  • 1,009 View
  • 27 Download

Perspective

Integrating Ayush practitioners in outbreak investigations in India: a call for action
Anbarasi Chandrasekaran, Natarajan Shanmugasundaram
Osong Public Health Res Perspect 2026;17(3):282-285.
Published online May 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0560
  • 999 View
  • 25 Download

Original Articles

Factor structure and measurement invariance of the EuroQol 5-dimensional questionnaire: a secondary analysis of the Korea Health Panel survey
Objectives
This study evaluated the EuroQol 5-dimensional questionnaire, 3-level version (EQ5D-3L), using Korea Health Panel (KHP) data by examining its factor structure, measurement invariance across gender and age groups, and longitudinal measurement invariance. Methods: Panel 1 data from the second survey year (2009), when the EQ-5D-3L was first introduced in the KHP, through the 12th year (2017) were analyzed, along with panel 2 data from 2019 to 2021. Confirmatory factor analysis and measurement invariance tests by gender and age groups were conducted within each period. Longitudinal measurement invariance was also evaluated for each period. Results: A 1-factor model demonstrated good fit for the EQ-5D-3L. In panel 1, full measurement invariance across gender and age groups was supported. In panel 2, partial invariance was achieved after relaxing constraints on item 5. Longitudinal measurement invariance was supported over 5- and 10-year intervals in panel 1 and over a 3-year interval in panel 2, indicating temporal stability of the measurement model. Conclusion: The EQ-5D-3L used in the KHP panel 1 and panel 2 datasets demonstrates a stable 1-factor structure and acceptable measurement invariance across key subgroups and over time. These findings support the use of the EQ-5D-3L as an appropriate instrument for assessing health-related quality of life among Korean adults and for longitudinal analyses within large-scale panel surveys.
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  • 37 Download
The clonality and dissemination of carbapenem-resistant Klebsiella pneumoniae in a tertiary hospital in Malaysia: a retrospective analysis from 2022 to 2023
Ummu Afeera Zainulabid, Hui-min Neoh, Xiong Khee Cheong, Najma Kori, Chee Lan Lau, Sunita Sulaiman, Siti Rokiah Yusof, Nur Ayuni Ahamad Faudzi, Maliha Farah Nurhazirah Yahya, Han Ming Gan, Sharifah Azura Salleh, Petrick Periyasamy
Osong Public Health Res Perspect 2026;17(3):262-271.
Published online May 7, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0493
The clonality and dissemination of carbapenem-resistant Klebsiella pneumoniae in a tertiary hospital in Malaysia: a retrospective analysis from 2022 to 2023
Objectives
Cases of nosocomial carbapenem-resistant Klebsiella pneumoniae (CRKP) have been increasing steadily since the 1990s. In this study, we sought to assess CRKP clonal diversity and patterns of dissemination at Hospital Canselor Tuanku Muhriz (HCTM), a tertiary university hospital located in Kuala Lumpur, Malaysia. Methods: From January 2022 to December 2023, all CRKP isolates from HCTM were included in the investigation. Associated patient demographic data and clinical histories were retrieved from hospital records. Antibiotic susceptibility data for the collected isolates were obtained from the HCTM diagnostic laboratory. Molecular typing was performed using enterobacterial repetitive intergenic consensus polymerase chain reaction (ERIC-PCR) to identify genetic clusters. Based on ERIC-PCR clustering results and epidemiological investigations, selected CRKP isolates were subjected to whole-genome sequencing (WGS) to validate clonal relatedness, identify antimicrobial resistance genes, and establish phylogenomic relationships. Results: During the study period, a total of 147 CRKP isolates were recovered from various wards across HCTM. All isolates exhibited resistance to imipenem, meropenem, or ertapenem, with 124 isolates confirmed as carbapenemase producers. ERIC-PCR identified 24 genetic clusters disseminated across 23 wards within HCTM. Twelve CRKP isolates were selected for WGS based on integrated epidemiological investigation and ERIC-PCR genotyping; sequence typing revealed ST17 as the dominant circulating CRKP lineage in the intensive care unit, ward 6E, and possibly across the hospital. The carbapenemase gene bla_NDM was detected in all WGS-analyzed CRKP isolates. Conclusion: Integrating epidemiological investigation, phenotypic testing, molecular typing, and WGS is essential to understand resistance dynamics, map transmission, and guide hospital infection prevention strategies.
  • 1,680 View
  • 55 Download
Genetic profiling of the tolC component of the acrAB-TolC efflux pump in clinical Klebsiella pneumoniae isolates: a cross-sectional study in Pontianak, Indonesia
Mardhia Mardhia, Delima Fajar Liana, Sari Eka Pratiwi, Mahyarudin Mahyarudin, Risa Agustina
Osong Public Health Res Perspect 2026;17(3):254-261.
Published online April 20, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0573
Genetic profiling of the tolC component of the acrAB-TolC efflux pump in clinical Klebsiella pneumoniae isolates: a cross-sectional study in Pontianak, Indonesia
Objectives
Klebsiella pneumoniae is a leading cause of hospital-acquired infections. Its increasing prevalence poses substantial challenges to both hospital and public health systems due to the emergence of multidrug-resistant strains. Understanding the epidemiology of K. pneumoniae and its antimicrobial resistance characteristics may support antimicrobial stewardship and infection control programs. A cross-sectional study was conducted from June to November 2025. Methods: A total of 62 isolates underwent phenotypic identification and antimicrobial susceptibility testing using the BD Phoenix system (Becton Dickinson), followed by molecular detection of K. pneumoniae and efflux pump genes. Sanger sequencing was performed on isolates positive for the tolC gene. Results: Among the isolates, 66.1% were classified as extended-spectrum β-lactamase (ESBL) producers, 6.5% as carbapenem-resistant Enterobacterales (CRE), and 6.5% as both ESBL and CRE producers. Most clinical isolates were resistant to ampicillin, cefazolin, ceftazidime, ceftriaxone, ciprofloxacin, and cefepime. The acrAB and tolC genes were detected in all 62 isolates. One isolate showed a genetic profile similar to that of the K. pneumoniae KP 52.145 strain. Conclusion: This study demonstrated a high prevalence of antibiotic resistance among K. pneumoniae isolates and confirmed the presence of efflux pump genes, including tolC, with observable genetic variability. Further investigation of tolC gene evolution is essential, as these genes play critical roles in antibiotic resistance mechanisms.
  • 2,588 View
  • 48 Download
Epidemiological trends and regional risk factors for scrub typhus in Busan, Republic of Korea: 2019–2023
Keoungsuk Kim, Hyeokjin Lee, Seungah Park, Gey Ok Lee, Sang-Eun Lee
Osong Public Health Res Perspect 2026;17(3):242-253.
Published online May 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2026.0085
Epidemiological trends and regional risk factors for scrub typhus in Busan, Republic of Korea: 2019–2023
Objectives
Scrub typhus, an acute disease caused by Orientia tsutsugamushi and transmitted by larval chigger mites, is a representative autumn febrile illness in the Republic of Korea. We examined epidemiological characteristics underlying spatial heterogeneity in Busan Metropolitan City to inform region-specific prevention and control policies. Methods: We analyzed 1,645 confirmed and suspected scrub typhus cases reported in Busan from 2019 to 2023. Crude incidence rates and age-standardized incidence rates (ASIRs) per 100,000 population were calculated using the 2021 mid-year population. The chi-square test assessed associations between disease occurrence and exposure activities within the preceding 30 days. Correlation analyses examined the relationships of ASIR with environmental indicators, including per capita urban forest area, and epidemiological indicators, including prior infectious disease education. Results: The overall mean ASIR in Busan was 8.35 per 100,000 population, below the national average. However, incidence was higher in peri-urban districts, including Gijang-gun (26.12/100,000) and Gangseo-gu (15.02/100,000), than in central urban districts such as Junggu (2.20/100,000). Higher incidence was observed among women and older adults (≥60 years). ASIR correlated strongly with per capita urban forest area (r=0.92; 95% confidence interval, 0.79–0.97; p<0.001). Regional differences were significant for agriculture/forestry, gardening, and general outdoor activities (p<0.001). Districts with higher incidence also displayed higher rates of infectious disease education, although this may reflect reverse causation. Conclusion: In Busan, scrub typhus incidence was concentrated in peri-urban districts. These findings support region-specific prevention strategies, evaluation of infectious disease education, enhanced mite surveillance, and practical protective measures during fieldwork.
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Modeling social and behavioral factors associated with community participation in community-based surveillance of communicable diseases: a cross-sectional study in Kelantan, Malaysia
Ahmed Azeez Hasan, Anis Kausar Ghazali, Norsa’adah Bachok, Najib Majdi Yaacob, Suhaily Mohd Hairon, Nur Amira Mohd Nadir, Fatimah Muhd Shukri
Osong Public Health Res Perspect 2026;17(3):229-241.
Published online May 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0447
Modeling social and behavioral factors associated with community participation in community-based surveillance of communicable diseases: a cross-sectional study in Kelantan, Malaysia
Objectives
This study examined the social and behavioral factors influencing community leaders’ participation in community-based surveillance (CBS) of infectious diseases. We hypothesized that knowledge, attitudes, and perceptions significantly predict the behavioral likelihood of engaging in CBS activities. Methods: A cross-sectional study was conducted among 470 schoolteachers in Kelantan, Malaysia, from March to June 2024. Participants were selected using multistage sampling, with random selection of schools followed by convenience sampling of teachers. Data were collected using the validated KAP-CBS-ID questionnaire, which was based on the Theory of Reasoned Action and Health Belief Model. Structural equation modeling was used to analyze relationships among the study variables with the maximum likelihood robust estimator. Results: The final model demonstrated good fit (comparative fit index, 0.921; standardized root mean square residual, 0.071; root mean square error of approximation, 0.040 [90% confidence interval, 0.036–0.044]). Ten significant path relationships were identified, explaining 46.1% of the variance in behavioral likelihood. Knowledge of infectious diseases (β=0.419, p<0.001), subjective norms (β=0.235, p=0.038), and negative attitudes (β=–0.432, p<0.001) significantly influenced intention. Behavioral likelihood was directly predicted by intention (β =0.347, p<0.001), perceived susceptibility (β=0.310, p<0.001), perceived benefits (β=0.198, p=0.001), and perceived barriers (β=–0.132, p=0.008). Self-efficacy showed significant indirect effects through perceived benefits (β=0.785, p<0.001) and perceived susceptibility (β=0.765, p<0.001). Conclusion: Knowledge and psychosocial factors significantly inf luence community engagement in CBS of infectious diseases. Public health interventions should address these interconnected determinants to strengthen early disease detection and reporting systems.
  • 1,425 View
  • 71 Download

Review Articles

Personalized medicine as a novel therapeutic approach for autoimmune diseases: new insights and future prospects
Mahdi Nasiri-Ghiri, Yaghoob Foolad, Shirin Mahmoodi, Abdolmajid Ghasemian
Osong Public Health Res Perspect 2026;17(3):216-228.
Published online May 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0430
Personalized medicine as a novel therapeutic approach for autoimmune diseases: new insights and future prospects
Autoimmune diseases are caused by dysfunction of the immune system, leading to inappropriate attacks on healthy tissues. Because patients have diverse genetic predispositions and heterogeneous responses to therapy, personalized medicine (PM) offers an opportunity to improve treatment effectiveness. PM uses diagnostic assessments to tailor treatment through individualized medical interventions. PM may improve therapeutic precision beyond traditional trial-and-error approaches, reduce adverse consequences, and improve outcomes by integrating genomic and transcriptomic data. PM considers genetic and molecular landscapes, immunologic factors, epigenetic influences, and environmental exposures to assess treatment response. However, challenges remain related to diagnostic access, the slow pace of biomarker identification, technological limitations, sustained patient engagement, data management, and computational requirements. Nevertheless, continued efforts to improve understanding of disease pathophysiology, gene expression, and immune regulation—together with the application of novel technologies and machine learning—may advance PM-based therapies. Additional opportunities include drug–target modeling and exploratory singlecell–based approaches to clarify patient-specific therapeutic mechanisms. This review briefly introduces the potential of PM for type 1 diabetes, rheumatoid arthritis, and multiple sclerosis.
  • 1,928 View
  • 58 Download
Genetic diversity and multiplicity of Plasmodium spp. infections in Southeast Asia: a scoping review
Angela Pricillia Helen, Martini Martini, Bo-Young Jeon, Jin-Hee Han, Fauzi Muh
Osong Public Health Res Perspect 2026;17(3):206-215.
Published online May 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0616
Genetic diversity and multiplicity of Plasmodium spp. infections in Southeast Asia: a scoping review
Objectives
This scoping review synthesizes molecular evidence on Plasmodium genetic diversity and multiplicity of infection (MOI) in Southeast Asia and describes variation by species and epidemiological setting. Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews guidelines, we searched PubMed, Scopus, ProQuest, and EBSCO for English language, open-access observational studies published between January 1, 2015 until October 11, 2025. Included studies involved laboratory-confirmed human malaria and reported MOI and genetic diversity data derived from appropriate molecular genotyping methods. Findings were summarized by species, geography, markers, and clinical categories. Results: Sixteen studies were included, comprising 1,609 genotyped Plasmodium falciparum infections, 1,526 Plasmodium vivax infections, 37 Plasmodium malariae infections, and 188 human Plasmodium knowlesi infections. P. falciparum exhibited marked heterogeneity, with polyclonal infection rates ranging from 3.9% to 73.9% and mean MOI ranging from 1.05 to 4.9. P. vivax consistently showed high diversity, with polyclonal infection rates ranging from 16.9% to 71.4% and mean MOI ranging from 1.1 to 1.91, alongside expected heterozygosity values of 0.66–0.87. P. malariae displayed low MOI, whereas P. knowlesi showed polyclonal infection rates ranging from 7.3% to 21% and mean MOI ranging from 1.04 to 1.06. No data were available for Plasmodium ovale. Conclusion: P. falciparum and P. vivax remain genetically diverse across Southeast Asia, with heterogeneous transmission patterns, particularly in border regions. Limited data on P. malariae, human P. knowlesi, and P. ovale highlight the need for standardized molecular surveillance to support targeted elimination efforts.
  • 2,007 View
  • 115 Download
Climate change and older adults: mapping health impacts and intervention strategies: a scoping review
Ponnarasu Ponnu, Manish Taywade, Sandeep Das
Osong Public Health Res Perspect 2026;17(3):196-205.
Published online April 13, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0324
Climate change and older adults: mapping health impacts and intervention strategies: a scoping review
Objectives
This scoping review aimed to examine the impact of climate change on the health of older adults and to evaluate existing interventions targeting this population. Methods: The review followed Arksey and O’Malley’s framework and the PRISMA-ScR guidelines. A comprehensive search was conducted across PubMed, Google Scholar, Scopus, and Web of Science. Eligible studies included those focusing on adults aged 60 years and older that examined the physical and mental health impacts of climate change across any geographic setting or level of care. Descriptive and thematic analyses were performed to identify key findings and knowledge gaps. Results: Climate change adversely affects the physical and mental health of older adults through increased exposure to infectious diseases, extreme temperatures, and poor air and water quality. Older adults are particularly vulnerable to heat-related illnesses, cardiovascular events, and respiratory conditions, with women and individuals with comorbidities at higher risk. Climate change is also associated with increased anxiety, insomnia, and other mental health concerns in this population. Social support and targeted interventions—such as community awareness programs and subsidized cooling costs—are associated with reduced risk. Community-based initiatives have demonstrated potential in reducing mortality and enhancing resilience among older adults during extreme weather events. Conclusion: Healthcare professionals should be educated about climate-related health outcomes affecting older adults. Protecting this vulnerable population requires urgent, inclusive, and targeted strategies, including education, improved healthcare access, and tailored interventions.
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  • 127 Download

Editorial

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  • 34 Download

Brief Reports

Current status of hepatitis C treatment and its barriers in Jeonbuk, Republic of Korea
Ji Hyeon Kang, You Jeong Moon, Ung-Gyu Kim, Jung-Im Park, Chang Hun Lee, In Hee Kim, Ju-Hyung Lee, Jin Gwack
Osong Public Health Res Perspect 2026;17(2):188-192.
Published online April 7, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0516
Current status of hepatitis C treatment and its barriers in Jeonbuk, Republic of Korea
Objectives
In alignment with the World Health Organization’s goal of eliminating hepatitis C, this study assessed the current treatment status and reasons for non-treatment among patients with hepatitis C in Jeonbuk State, Republic of Korea, to inform strategies for improving care engagement.
Methods
Among 311 individuals diagnosed with hepatitis C and reported through the National Notifiable Infectious Disease Surveillance system between January 2023 and June 2024, 208 patients were surveyed after excluding those who had died or could not be contacted. Statistical analyses included the chi-square test, the Cochran-Armitage test for trend, and logistic regression.
Results
Overall, 116 participants (55.8%) reported having received antiviral therapy. Among the 92 untreated individuals, the most common reason for non-treatment was the absence of symptoms (n=23; 25.0%), followed by the burden of drug costs (n=21; 22.8%).
Conclusion
These findings highlight suboptimal treatment uptake and key barriers that may hinder progress toward hepatitis C elimination. Expanding screening and strengthening linkage-to-care strategies, while addressing financial barriers, will be essential to achieving national elimination targets.
  • 1,755 View
  • 44 Download
Hepatitis virus seroconversion among patients on maintenance hemodialysis in North India: a prospective cohort study
Pooja Yadav, Arpita Panda, Shilpee Kumar, Rajesh Kumar, Deepthi Nair
Osong Public Health Res Perspect 2026;17(2):182-187.
Published online April 7, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0508
Hepatitis virus seroconversion among patients on maintenance hemodialysis in North India: a prospective cohort study
Objectives
Patients receiving hemodialysis (HD) are at increased risk of acquiring hepatitis B virus (HBV) and hepatitis C virus (HCV) due to repeated blood exposure, vascular access procedures, and blood transfusions. The study aimed to determine the seroconversion rates of HBV and HCV among patients undergoing dialysis and to identify associated risk factors.
Methods
A total of 220 adult patients receiving dialysis who were seronegative for hepatitis B surface antigen (HBsAg) and anti-HCV antibodies at baseline were enrolled. Serologic testing was repeated at 6 months.
Results
Sixteen patients (7.3%) seroconverted to HBsAg positivity, and 23 (10.5%) seroconverted to anti-HCV positivity. HBV seroconversion was significantly associated with multiple dialysis center visits. HCV seroconversion was significantly associated with dialyzer reuse, multiple dialysis center visits, and dialysis duration ≥2 years. Elevated liver enzyme levels were strongly correlated with seroconversion for both viruses.
Conclusion
HBV and HCV seroconversion remain concerns in HD units. Standardized infection control practices, minimization of patient transfers, and strict adherence to national guidelines are essential to reducing risk.
  • 2,173 View
  • 53 Download

Original Articles

Association of quantity and quality of fat intake with sleep quality: a cross-sectional study in Iran
Melika Fallah, Azadeh Aminianfar, Awat Feizi, Maryam Fallah, Peyman Adibi, Hamidreza Roohafza, Alireza Ani, Leila Azadbakht, Ahmad Esmaillzadeh
Osong Public Health Res Perspect 2026;17(2):165-181.
Published online March 11, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0289
Association of quantity and quality of fat intake with sleep quality: a cross-sectional study in Iran
Objectives
The association between dietary fat intake and sleep quality remains unclear. This study investigated the impact of both dietary fat quality and quantity on sleep quality.
Methods
In this cross-sectional study, participants completed a food frequency questionnaire and Pittsburgh Sleep Quality Index to assess quantity and quality of fat intake and sleep quality.
Results
A total of 1,904 participants (55% female) were included in the study. Participants in the highest tertile of polyunsaturated fatty acids (PUFA) intake, compared with those in the lowest tertile, had significantly higher total sleep quality scores (odds ratio [OR], 1.27; 95% confidence interval [CI], 1.01–1.62) and longer sleep onset latency (OR, 1.40; 95% CI, 1.08–1.83). Participants with higher animal fat intake exhibited higher total sleep quality scores (OR, 1.44; 95% CI, 1.09–1.89) and increased sleep disturbances (OR, 1.37; 95% CI, 1.02–1.83). Among women, those in the highest tertile compared with the lowest tertile showed increased odds of higher total sleep quality scores with total fat (OR, 1.37; 95% CI, 1.04–1.82), PUFA (OR, 1.41; 95% CI, 1.07–1.87), monounsaturated fatty acids (OR, 1.44; 95% CI, 1.09–1.90), saturated fatty acid (OR, 1.33; 95% CI, 1.01–1.77), and animal fat (OR, 1.58; 95% CI, 1.18–2.11).
Conclusion
These findings suggest that higher intakes of PUFA and animal fat are associated with higher total sleep quality scores. When stratified by sex, higher intake of total fat and unsaturated fats was associated with higher total sleep quality scores in women only.
  • 1,715 View
  • 72 Download
Secondary transmission of severe fever with thrombocytopenia syndrome in a hospital setting in Republic of Korea: a retrospective observational study of personal protective equipment use and infection risk factors
Objectives
This study investigated a cluster of secondary human-to-human transmission of severe fever with thrombocytopenia syndrome (SFTS) in a hospital setting, focusing on infection risk factors and the role of personal protective equipment (PPE).
Methods
A descriptive epidemiological investigation was conducted following the death of an index patient with laboratory-confirmed SFTS. A total of 27 close contacts, including healthcare workers and a funeral director, were monitored for symptoms. Suspected cases underwent real-time reverse transcription polymerase chain reaction testing. Clinical features, PPE use, and exposure histories were analyzed. The Fisher exact test was used to assess associations between PPE use and infection. Viral genotyping and sequence analyses were performed to evaluate transmission routes.
Results
The index patient deteriorated rapidly and died after repeated cardiopulmonary resuscitation (CPR), during which 8 secondary cases occurred. Most infections were identified among individuals involved in CPR or postmortem care without adequate PPE. Although not statistically significant, infection rates were higher among those who did not wear masks or who used low-filtration masks. Proper use of gloves, gowns, and goggles was associated with lower infection rates. Cycle threshold values in secondary cases (range, 34–39) were higher than in the index case (14.07), suggesting lower viral loads. Sequence analysis demonstrated 99.6%–100% homology between the index and secondary cases; all isolates were genotype B, indicating direct transmission.
Conclusion
This study provides molecular and epidemiological evidence of nosocomial SFTS transmission. Inadequate PPE use during aerosol-generating procedures likely facilitated infection, underscoring the importance of strict adherence to PPE protocols and reinforced infection control practices.

Citations

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  • Severe fever with thrombocytopenia syndrome complicated by invasive pulmonary aspergillosis and septic shock: a case report highlighting the role of mNGS
    Bolin Wang, Mingyue Zhao, Qingfeng Chen, Feihu Zhang, Mingzhi Fan, Xinbao Lian
    Frontiers in Medicine.2026;[Epub]     CrossRef
  • 2,321 View
  • 73 Download
  • 1 Web of Science
  • Crossref
Barriers to treatment completion among drug-sensitive tuberculosis patients: evidence from Indonesia’s tuberculosis surveillance system
Mahalul Azam, Latifa Hanan, Muhammad Azinar, Amelia Fitra Khasanah, Arulita Ika Fibriana, Moch Yunus, Dewi Susanna, Martha Irene Kartasurya, Shabbir Syed-Abdul
Osong Public Health Res Perspect 2026;17(2):145-154.
Published online March 19, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0325
Barriers to treatment completion among drug-sensitive tuberculosis patients: evidence from Indonesia’s tuberculosis surveillance system
Objectives
This study aimed to estimate the prevalence of loss to follow-up (LTFU) among tuberculosis (TB) patients in Indonesia and to identify associated factors.
Methods
This study analyzed data from the 2022 Tuberculosis Information System in Indonesia. A total of 71,665 drug-sensitive TB patients were included in the analysis. Age, sex, employment status, diagnosis type, human immunodeficiency virus (HIV) status, diabetes mellitus, TB type, mode of treatment, treatment standard, referral status, and type of residence. Categorical variables were analyzed using chi-square tests, followed by multivariable logistic regression to identify confounder-adjusted independent predictors of LTFU.
Results
The prevalence of LTFU was 18.4%. A higher likelihood of LTFU was observed among older adults aged ≥65 years (adjusted-prevalence-odds-ratio [aPOR], 1.862), men (aPOR, 1.187), unemployed individuals (aPOR, 1.136), non-referred patients (aPOR, 1.547), patients with HIV (aPOR, 3.712), and those obtaining TB drugs out of pocket (aPOR, 4.998). The strongest predictor was receipt of non-standard treatment, which was associated with a markedly increased likelihood of LTFU (aPOR, 26.912). In contrast, rural residence demonstrated a protective association (aPOR, 0.610). All associations were statistically significant (p<0.001).
Conclusion
This study highlights a substantial burden of LTFU among TB patients in Indonesia, with nearly one in five patients discontinuing treatment. Multiple sociodemographic and clinical factors—particularly non-standard treatment, non-referral status, and HIV co-infection—were strongly associated with LTFU, underscoring gaps in the TB care continuum. These findings emphasize the need for targeted, patient-centered interventions, strengthened referral pathways, improved communication, and enhanced care coordination to reduce LTFU in high-risk groups.
  • 1,870 View
  • 125 Download
Metabolic and cardiovascular comorbidities as predictors of severe dengue in Vietnamese adults: a retrospective study, 2022–2024
Thang Nhu Doan, Duc Minh Cap
Osong Public Health Res Perspect 2026;17(2):136-144.
Published online March 19, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0316
Metabolic and cardiovascular comorbidities as predictors of severe dengue in Vietnamese adults: a retrospective study, 2022–2024
Objectives
This study aimed to determine the prevalence of severe dengue and examine the associations between pre-existing comorbidities and disease severity.
Methods
This retrospective study examined patients with dengue fever who received inpatient treatment at a hospital in northern Vietnam between January 1, 2022, and December 30, 2024. Patients were categorized into 2 groups—severe dengue and non-severe dengue—based on the 2009 World Health Organization criteria. Multivariable logistic regression was performed to assess factors associated with severe dengue.
Results
Among 3,692 patients, the prevalence of severe dengue was 1.5%. Patients with any pre-existing comorbidity had higher odds of severe dengue compared to those without comorbidities (adjusted odds ratio [aOR], 2.06; 95% confidence interval [CI], 1.20–3.53). Having 2 or more comorbidities was also associated with higher odds of severe dengue (aOR, 2.26; 95% CI, 1.18–4.33). Among individual conditions, hyperlipidemia was associated with severe dengue (aOR, 2.32; 95% CI, 1.17–4.81). Certain combinations of comorbidities, including hypertension with hyperlipidemia (aOR, 2.88; 95% CI, 1.39–5.97), hypertension with cardiac disease (aOR, 4.39; 95% CI, 1.30–14.79), and hyperlipidemia with cardiac disease (aOR, 4.02; 95% CI, 1.19–13.53), were also associated with higher odds of severe dengue.
Conclusion
Pre-existing comorbidities, particularly cardiometabolic conditions, were associated with higher odds of severe dengue. Considering comorbidity profiles at hospital admission may help identify patients who require closer clinical monitoring.
  • 2,639 View
  • 96 Download

Review Articles

Evidence for a perinatal origin of childhood obesity: a systematic review and meta-analysis of risk and protective factors
Andi Rispah Sulistianingsih, Nurjazuli Nurjazuli, Martha Irene Kartasurya, Syamsulhuda Budi Musthofa, Jauhari Oka Reuwpassa
Osong Public Health Res Perspect 2026;17(2):114-135.
Published online March 27, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0351
Evidence for a perinatal origin of childhood obesity: a systematic review and meta-analysis of risk and protective factors
Objectives
This systematic review aimed to identify perinatal risk factors associated with obesity in children aged ≤5 years.
Methods
This studyfollowed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Medline (via PubMed), Embase, and Cochrane CENTRAL were searched from inception, without language or date restrictions. In addition, gray literature sources, including LILACS and CNKI, were screened for comprehensive evidence synthesis. Meta-analyses were conducted to estimate pooled risk ratios. Study quality was independently assessed by 2 reviewers using the Joanna Briggs Institute critical appraisal tool.
Results
A total of 24,643 articles were screened, and 39 cohort studies were included in the final analysis. Sample sizes ranged from 169 to 333,353 participants. Meta-analysis results indicated that high gestational weight gain (adjusted risk ratio [aRR], 1.46; 95% confidence interval [CI], 1.17–1.82), history of cesarean section (aRR, 1.25; 95% CI, 1.17–1.33), macrosomia (aRR, 1.88; 95% CI, 1.55–2.27), antibiotic use (aRR, 1.31; 95% CI, 1.14–1.51), pre-pregnancy obesity (aRR, 1.82; 95% CI, 1.21–2.73), and female sex (aRR, 1.46; 95% CI, 1.32–1.61) were associated with an increased risk of obesity in children aged ≤5 years. Exclusive breastfeeding (aRR, 0.74; 95% CI, 0.64–0.85) was identified as a protective factor..
Conclusion
Perinatal factors and pre-pregnancy obesity played important roles in increasing the risk of obesity in children aged ≤5 years. Breastfeeding was associated with a protective effect against childhood obesity. Therefore, obesity prevention efforts should begin during pregnancy, and maintaining appropriate maternal weight before conception is equally essential.

Citations

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  • Multi-class urinary antibiotic exposure, dietary sources, and childhood overweight and obesity risk through lipid metabolic disruption: evidence from multicenter cohorts in China
    Xinli Song, Jieyu Liu, Li Chen, Yi Zhang, Ruolin Wang, Jianuo Jiang, Lan Zhang, Yanle Xiong, Jingyang Su, Ziqi Dong, Yang Qin, Dengcheng Zhang, Zhenting Lu, Zhiying Song, Jinghong Liang, Jun Ma, Yanhui Dong
    Environmental Pollution.2026; 408: 128907.     CrossRef
  • 2,706 View
  • 104 Download
  • 1 Web of Science
  • Crossref
Collaborative networks, trends, and comparative analysis of artificial intelligence techniques in healthcare research: a narrative review
Objectives
Artificial intelligence (AI) is reshaping healthcare by improving diagnosis and treatment planning, increasing operational efficiency, and streamlining administrative workflows. This paper integrates findings from an extensive PubMed search (2015–2025) with bibliometric analysis using RStudio and VOSviewer to investigate the comparative applications of AI methods in healthcare, collaborative networks, and emerging trends.
Methods
A total of 1,243 records were identified through the PubMed search, and after removal of 143 duplicates, 1,100 records were screened. Following full-text assessment and exclusion of ineligible studies, 986 articles were included in the final bibliometric analysis.
Results
The main research areas included robotic-assisted surgery, predictive analytics, diagnostic imaging, and precision medicine, with particular emphasis on the prevalence of machine learning and deep learning in imaging and the increasing application of natural language processing to unstructured medical information.
Conclusion
The review emphasizes the need for greater budgetary allocation to scalable and pragmatic AI technologies and for interdisciplinary cooperation among researchers, industry, and healthcare providers. Despite this growth, challenges such as algorithmic bias, data integration, and ethical concerns persist. The paper also highlights the importance of equitable collaboration, accountable AI, and multinational partnerships in ensuring that AI can be used ethically and efficiently in healthcare over the long term to improve patient care and biomedical innovation. It does so by mapping international and regional trends, identifying the most influential authors, institutions, and funding sources, and evaluating methodological approaches.
  • 5,518 View
  • 71 Download

Perspective

Scoping insights into the application of virtual reality in patient care and clinical practice
Anmar Al-Taie
Osong Public Health Res Perspect 2026;17(2):97-99.
Published online March 17, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0547
  • 1,450 View
  • 55 Download

Editorial

Original Articles

Correlates and co-occurrence of risk factors for non-communicable diseases among adolescents in schools in Karnataka, India: a cross-sectional study
Tejaswini Bangalore Darukaradhya, Krishnamurthy Jayanna, Shivaraj Nallur Somanna, Sony Sequeira, Shalini Chandrashekar Nooyi
Osong Public Health Res Perspect 2026;17(1):83-93.
Published online February 10, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0204
Correlates and co-occurrence of risk factors for non-communicable diseases among adolescents in schools in Karnataka, India: a cross-sectional study
Objectives
Non-communicable disease (NCD) risk among adolescents represents a growing concern due to modifiable, lifestyle-related behavioral risk factors. Early identification and control of these factors are essential for prevention. This study assessed the correlates and cooccurrence of NCD-related lifestyle risk factors among school-going adolescents in Karnataka, India, aiming to inform intervention development. Methods: Screening was conducted among 1,100 school adolescents aged 13–16 years from 8 randomly selected urban and rural schools in Karnataka. Data were collected using a validated self-administered questionnaire covering sociodemographic characteristics and social cognitive theory predictors of lifestyle practices. Descriptive statistics, chi-square tests, and logistic regression were employed. Results: Of the 1,100 adolescents surveyed, 552 and 548 were from urban and rural areas, respectively. Both groups reported high rates of insufficient fruit and vegetable (FV) intake (96.7% and 67.7%, respectively), inadequate physical activity (96.7% and 68.6%), tobacco use (5.6% and 11.5%), and alcohol consumption (5.6% and 10.8%). On logistic regression, urban adolescents were significantly more likely than rural peers to exhibit multiple behavioral risk factors, with 19-fold higher odds of having ≥1 factor (adjusted odds ratio [AOR], 19.04; p< 0.001) and 4-fold higher odds of having ≥2 (AOR, 4.06; p < 0.001). Parental (particularly maternal) education was associated with NCD risk (AOR, 1.82; p= 0.001). Physical inactivity significantly co-occurred with low FV intake (71.7%) and junk food consumption (72.8%). Conclusion: Unhealthy lifestyle behaviors among adolescents displayed significant cooccurrence, underscoring the critical need for comprehensive, theory-based school interventions to address multiple interconnected risk factors and mitigate the burden of NCDs.
  • 1,993 View
  • 107 Download
Reciprocal associations between smartphone overdependence and anxiety in adolescents: evidence from a nationally representative survey in the Republic of Korea
Objectives
Smartphone overdependence (SOD) and anxiety are major concerns in adolescent mental health; however, few studies have examined their bidirectional relationship. This study aimed to examine reciprocal associations between SOD and anxiety among adolescents. Methods: A secondary analysis was conducted with data from 50,975 adolescents in the 19th Korea Youth Risk Behavior Survey. SOD was measured using the SOD scale, and anxiety was assessed using the generalized anxiety disorder 7-item scale. Multivariable logistic regression analyses were conducted to examine reciprocal associations, adjusting for sociodemographic factors, perceived stress, loneliness, and depressive symptoms. Results: Moderate to severe anxiety was found in 12.6% of participants, and 3.3% were classified as being at high risk for SOD. In adjusted models, the model with anxiety as the outcome demonstrated higher predictive performance (concordance rate, 86.5%) than the model with SOD as the outcome (77.3%). Adolescents at high risk for SOD had higher odds of reporting anxiety, and those with severe anxiety had higher odds of being classified as at high risk for SOD. Stress, loneliness, and smartphone use time were also identified as significant predictors. Conclusion: SOD and anxiety were strongly associated with each other among adolescents. Integrated approaches addressing both digital behavior and mental health may help inform strategies to reduce psychological distress. Public health strategies may benefit from considering both aspects when screening for problematic smartphone use and anxiety.
  • 2,261 View
  • 88 Download
A multi-city outbreak of Salmonella Enteritidis infections linked to bakery products, Republic of Korea
Da Seul Kim, Soon-Young Seo, Dong Hwi Kim, Yeon Hee Woo, Deborah Lee, Se Jeong Yang, Junyoung Kim, Eunkyung Shin, Byungsun Jung, Eunmi Lee, Min Jung Lee, Young-Joon Park
Osong Public Health Res Perspect 2026;17(1):61-71.
Published online February 10, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0467
A multi-city outbreak of Salmonella Enteritidis infections linked to bakery products, Republic of Korea
Objectives
In May 2025, clusters of salmonellosis were identified in 7 cities in the Republic of Korea, all associated with consumption of identical bakery products. This investigation aimed to characterize the outbreak, identify potential contributing factors, and inform strategies for preventing similar multi-facility foodborne outbreaks. Methods: A case series study was conducted among individuals who consumed Manufacturer H’s Product I and Product II on May 15–16, 2025 at 7 facilities (n= 1,235). Clinical specimens from symptomatic individuals, retained food samples, and environmental samples were collected and tested. Food-exposure histories were assessed, and active case finding was implemented across all supplied facilities. Traceback investigations were conducted at the manufacturer, distributor, and egg farms. Human and food isolates underwent pulsed-field gel electrophoresis (PFGE) and whole-genome sequencing (WGS). Results: A total of 323 cases met the outbreak case definition (attack rate, 26.2%), of which 48 were laboratory-confirmed. Salmonella Enteritidis was isolated from both clinical specimens and retained bakery products. PFGE patterns were indistinguishable between human and food isolates, and WGS demonstrated high genetic relatedness. These findings confirmed a common-source outbreak linked to the implicated bakery products. Conclusion: This outbreak underscores the value of integrating epidemiological investigation, active case finding, and molecular typing to identify common food vehicles in outbreaks involving widely distributed manufactured foods. Coordinated collaboration between public health and food safety authorities is essential for the effective detection, response, and prevention of multi-facility foodborne outbreaks.

Citations

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  • Salmonella Enteritidis Outbreak at a Remote Mining Camp, Omnogovi Province, Mongolia, March 2025
    Ariungerel Dashtseren, Seonghui Cho, Chiara Achangwa, Yeongseon Ko, Bryan Inho Kim, Sukhyun Ryu, Joon Sup Yeom
    Journal of Food Protection.2026; 89(11): 100923.     CrossRef
  • 2,932 View
  • 126 Download
  • 1 Web of Science
  • Crossref
Time-series decomposition and modeling of dengue cases in Malaysia, 2022–2024: a nationwide observational study
Mohamad Afiq Amsyar Hamedin, Kamarul Imran Musa, Mohd Rahim Sulong
Osong Public Health Res Perspect 2026;17(1):50-60.
Published online January 27, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0397
Time-series decomposition and modeling of dengue cases in Malaysia, 2022–2024: a nationwide observational study
Objectives
This study aimed to examine the temporal dynamics of dengue cases in Malaysia from 2022 to 2024 using seasonal-trend decomposition and time-series modeling. Methods: Weekly dengue case counts from the national registry were analyzed across all states using seasonal-trend decomposition using LOESS (STL) to separate trend, seasonal, and irregular components. Autoregressive integrated moving average (ARIMA) and seasonal ARIMA (SARIMA) models were fitted to validate temporal structures, with model selection based on the Akaike information criterion (AIC), corrected AIC, and Bayesian information criterion. Diagnostic checks, including residual analysis and Ljung-Box testing, were performed to ensure model adequacy. Results: Dengue incidence showed marked heterogeneity across states. STL decomposition indicated that long-term trends contributed more strongly to case dynamics than seasonality in most states, although seasonal influences were significant in the states of Kedah and Kelantan. Seasonal peak timing varied between states, highlighting differences in epidemic cycles. ARIMA and SARIMA modeling confirmed that no single temporal structure could adequately represent all states; while some series were well fitted by simple ARIMA models, others required seasonal adjustments. Residual diagnostics demonstrated that the selected models were statistically adequate. Conclusion: Dengue dynamics in Malaysia are shaped by both trend and seasonal components, with considerable variation across states. Combining STL decomposition with ARIMA/SARIMA modeling strengthens the evidence base for state-specific forecasting and proactive vector control. Tailoring surveillance systems and interventions to local temporal patterns
  • 2,536 View
  • 156 Download
Crisis-driven innovation in the Republic of Korea's in vitro diagnostics industry: a pandemic case study
Minjoon Kim, Harry Jeong, Kwangsoo Shin
Osong Public Health Res Perspect 2026;17(1):33-49.
Published online January 28, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0313
Crisis-driven innovation in the Republic of Korea's in vitro diagnostics industry: a pandemic case study
Objectives
This study evaluated the effectiveness of government epidemic control policies centered on diagnostic testing and examined their impact on the in vitro diagnostics (IVD) industry. It also analyzed the complex interplay among policy interventions, epidemic dynamics, and the IVD industry’s value chain to identify key leverage points for managing future public health crises. Methods: A system dynamics (SD) model calibrated using national data from the Republic of Korea simulated the interactions between epidemic progression and the IVD value chain. We conducted a scenario analysis encompassing 6 policy interventions: research and development (R&D) investment, public–private collaboration, regulatory easing, diagnostic test performance, testing intensity, and social distancing. Results: Policies promoting investment, public–private collaboration, and regulatory easing accelerated the market entry of diagnostics, thereby reducing infections and deaths. However, these interventions were associated with lower overall industry revenue, attributable to increased market competition and a reduced patient population. A critical trade-off was noted: although regulatory speed is advantageous, using low-sensitivity diagnostics substantially worsened public health outcomes. Aggressive testing strategies and stringent social distancing were also confirmed to be effective in reducing both infections and mortality. Conclusion: This study provides a strategic framework for understanding interactions between pandemic control policies and the IVD industry. Sustained pre-crisis investment in R&D, public–private networks, and public health infrastructure is essential for effective pandemic preparedness. During a crisis, policymakers must carefully manage the critical trade-off between regulatory speed and diagnostic quality to ensure that rapid responses do not compromise public health outcomes.
  • 4,949 View
  • 70 Download

Review Articles

The role of artificial intelligence in managing COVID-19 and long COVID: a narrative review
Bikash Kanti Sarkar, Ambuj Kumar
Osong Public Health Res Perspect 2026;17(1):17-31.
Published online February 4, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0347
The role of artificial intelligence in managing COVID-19 and long COVID: a narrative review
The coronavirus disease 2019 (COVID-19) pandemic had an unprecedented global impact, resulting in both positive and negative consequences. The virus not only affected millions of lives worldwide but also caused long-term harm to multiple organ systems in many survivors, thereby substantially impairing quality of life. This persistent condition is now referred to as long COVID (LC). The aim of this study is to raise awareness of LC-related organ system impacts and to highlight the key role of artificial intelligence (AI) in mitigating these effects. The present research conducts a narrative review focusing on LC-related impacts. In this context, unstructured searches were conducted to identify a total of 69 relevant studies indexed in Embase, PubMed, Web of Science, or Scopus, each of which was reviewed by at least 2 experts with sufficient domain knowledge in health sciences. Based on the authors’ perspectives and insights, the review narratively examines damage to human organ systems attributable to LC and explores the role of AI in addressing LC-related challenges. Significant ethical, practical, and societal concerns arising from the extensive use of AI, particularly major issues such as data privacy and algorithmic bias, are also discussed. LC has caused lasting impacts on human organ systems, while AI is offering substantial potential for LC-related care.
  • 2,949 View
  • 98 Download
Applying biotechnology to overcome cancer drug resistance and improve public health outcomes
Franklin Akwasi Adjei, Bernard Kwame Frempong, Augustine Afriyie
Osong Public Health Res Perspect 2026;17(1):4-16.
Published online February 4, 2026
DOI: https://doi.org/10.24171/j.phrp.2025.0336
Applying biotechnology to overcome cancer drug resistance and improve public health outcomes
This review examines how biotechnology advances (CRISPR/Cas9, next-generation targeted therapies, nanotechnology-based drug delivery, and immunotherapies) can be applied to address cancer drug resistance worldwide. It also considers the economic burden of resistance, inequities in access to biotechnology solutions, and ethical concerns surrounding rapid innovation, particularly in low-resource settings. A narrative review synthesized evidence from basic science studies, clinical trials, translational research, and policy analyses. Evidence was prioritized for 2015–2025 publications. The synthesis highlights resistance biology and evaluates how precision medicine, biomarker-guided treatment, and high-throughput drug screening can inform individualized regimens and rational combinations. Breakthroughs in gene editing, targeted inhibitors, nanocarriers, and immune engineering can counter key resistance mechanisms, including resistance-conferring mutations, altered drug transport, immune evasion, and tumor microenvironment–mediated protection. Despite progress, implementation barriers remain substantial: high drug and development costs, limited molecular diagnostics and manufacturing capacity, and regulatory and governance challenges that can delay adoption and widen disparities, particularly in low- and middle-income countries. Integrating biotechnology innovations within precision medicine frameworks may improve treatment selection and patient outcomes. Maximizing public health impact requires affordability and financing strategies, robust ethical oversight, timely regulatory pathways, and coordinated global collaboration to ensure access to effective therapies across health systems worldwide.
  • 3,316 View
  • 108 Download

Editorial

  • 1,181 View
  • 49 Download

Short Communication

Early detection of dengue through rapid diagnostic testing at airport quarantine: a case study from the Republic of Korea (2022–2024)
Kee Hun Do, Jae Wook Oh
Osong Public Health Res Perspect 2025;16(6):586-592.
Published online October 29, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0254
Early detection of dengue through rapid diagnostic testing at airport quarantine: a case study from the Republic of Korea (2022–2024)
Objectives
This study evaluated the effectiveness of rapid diagnostic testing (RDT) for the early detection of imported dengue cases at Gimhae International Airport in the Republic of Korea, and analyzed patient characteristics and response processes following positive results.
Methods
From 2022 to 2024, 334 individuals underwent RDT at the airport. Testing was performed for travelers presenting with dengue-like symptoms or recent mosquito bites. Two dengue RDT kits (NS1 and immunoglobulin G/M) were used, and confirmatory tests—including real-time reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assays—were performed for RDT-positive cases. Time intervals between sample collection and diagnostic confirmation were compared by institution type and day of the week.
Results
Of the 334 cases tested, 12 yielded positive RDT results, and 3 were confirmed as dengue. No confirmed cases were identified among asymptomatic travelers or those with travel durations shorter than 5 days. All 3 confirmed cases showed moderate or higher RDT intensity. The confirmatory results were negative for all 7 marginally positive cases. The average turnaround time for diagnostic confirmation was 4.00 days in hospitals versus 2.71 days in public health centers. Samples collected on weekdays produced faster results (2.33 days) than those collected across weekends (5.00 days). One individual with a strong RDT-positive result declined confirmatory testing.
Conclusion
RDT is a valuable tool for detecting dengue at ports of entry. However, timely confirmatory diagnosis requires improved inter-agency coordination and logistical systems, particularly for weekend operations. These findings offer practical insights for strengthening quarantine-based infectious disease control.
  • 1,987 View
  • 73 Download

Original Articles

Analysis of factors influencing hemorrhagic fever with renal syndrome and its prediction in Weifang, China from 2013 to 2021
Hui Zhang, Wan-Ying Zhao, Yan-Qing Yang, Xue-Yan Guo, Yi-Han Shi, Qi-Yong Liu, Jing Li
Osong Public Health Res Perspect 2025;16(6):575-585.
Published online December 16, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0367
Analysis of factors influencing hemorrhagic fever with renal syndrome and its prediction in Weifang, China from 2013 to 2021
Objectives
This study aimed to analyze the epidemiology and trends of hemorrhagic fever with renal syndrome (HFRS) in Weifang, China (2013–2021) and to guide prevention strategies.
Methods
The study examined the prevalence and incidence trends of HFRS in Weifang (2013–2021). Spearman correlation and wavelet analysis were employed to explore variable relationships and their associations with HFRS incidence. Generalized additive models (GAMs) were used to identify key risk factors, while structural equation modeling (SEM) quantified direct and indirect pathways influencing HFRS transmission. Finally, Bayesian time-series models were applied to predict future HFRS risk.
Results
Weifang reported 2,118 HFRS cases, which displayed distinct seasonality. Spearman correlation linked economic factors (gross domestic product [GDP], crop area, grain output, green space) and meteorological factors (temperature, pressure) to incidence (r>0.8). Wavelet analysis identified Mus musculus (2013–2016) and Rattus norvegicus (2017–2021) as dominant reservoirs, with temperature, precipitation, and humidity correlating with incidence. GAMs revealed a U-shaped relationship between rodent density and HFRS and an inverted U-shaped relationship between temperature (threshold, 11.64 °C) and HFRS. SEM highlighted the direct and indirect effects of climate via rodent density, mirrored by economic factors (e.g., GDP). Bayesian models effectively predicted HFRS (root mean square error, 7.36; mean absolute percentage error, 0.28; R2=0.65).
Conclusion
Climate, economic, and anthropogenic factors drive the spread of HFRS. Prevention strategies should integrate local economic conditions with meteorological and anthropogenic factors. Bayesian time-series modeling effectively predicts HFRS trends, supporting precision prevention strategies.

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  • Epidemiological characteristics and spatiotemporal heterogeneity of hemorrhagic fever with renal syndrome in the Jiaodong Peninsula region, China, 2019–2025
    Xiaofang Guo, Ti Liu, Ruixiao Li, Xueying Tian, Yuwei Zhang, Xiaotong Shi, Qing Duan, Renpeng Li, Zengqiang Kou
    Frontiers in Public Health.2026;[Epub]     CrossRef
  • Drivers of Viral Spillover: An Examination of How Pathogens Spread
    Elenoire Sole, Giulia Montalbano, Giuseppe Motta, Maria Maddalena Pansera, Angelina Midiri, Mariarita Iacopino, Paolo Liotta, Giuseppe Mancuso, Carmelo Biondo
    Pathogens.2026; 15(9): 901.     CrossRef
  • 2,193 View
  • 91 Download
  • 2 Web of Science
  • Crossref
A machine learning approach for predicting suicidal ideation among family members of persons with disabilities: a cross-sectional study in the Republic of Korea
Objectives
Although family members of persons with disabilities face elevated suicide risk, predictive models remain underdeveloped in Korean contexts. This study aimed to develop machine learning–based predictive models for suicidal ideation among family members of persons with disabilities and examine differential risk patterns by disability onset type.
Methods
This cross-sectional study analyzed 124,783 adult family members (59.9% spouses, 20.3% parents/ascendants, 14.6% adult children, 5.2% extended family) from the 2018 Korean Disability and Life Dynamics Panel using survey weights. Four predictive models, including machine learning approaches, were compared using 31 variables. The dataset was divided into training (70%) and test (30%) sets, with stratified analyses comparing congenital and acquired disability groups.
Results
Among the 124,783 family members analyzed, least absolute shrinkage and selection operator (LASSO) with cross-validation achieved optimal performance (area under the receiver operating characteristic curve, 0.875 training; 0.853 test). LASSO selected 16 of 31 variables for the total sample, with family members’ depression as the strongest predictor (β=0.554), followed by disabled persons’ suicidal ideation (β=0.425). Stratified LASSO analyses revealed that national basic livelihood beneficiary status was the strongest predictor for families with congenital disability (β=0.541), while family members’ depression was the strongest predictor for families with acquired disability (β=0.562), demonstrating distinct predictive patterns by disability onset.
Conclusion
These findings show that predictive factors differ substantially by disability onset type, indicating the need for tailored intervention approaches and offering an evidence-based foundation for targeted suicide prevention strategies.
  • 1,918 View
  • 86 Download
Trends and risk factors for physical and psychological sequelae of induced abortion: a cross-sectional study of contemporary women in the Republic of Korea
Seung-Ah Choe, Juhyun Park, Eunsol Song, Eunja Park
Osong Public Health Res Perspect 2025;16(6):552-559.
Published online December 9, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0266
Trends and risk factors for physical and psychological sequelae of induced abortion: a cross-sectional study of contemporary women in the Republic of Korea
Objectives
This study aimed to examine trends and factors associated with severe physical and psychological consequences following induced abortion among women in the Republic of Korea.
Methods
An online survey was conducted of adolescent and adult Korean women aged 13 to 64 years, termed the 2022 Sex and Reproductive Health Survey. Respondents who reported a history of induced abortion were analyzed. Logistic regression models that accounted for individual risk factors were fitted to calculate adjusted odds ratios (aOR).
Results
The prevalence of induced abortion was 20.1% (914 of 4,552 respondents). The most frequent indications for abortion were social reasons, and across all periods, approximately half of the women or more reported non-medical challenges at the time of their most recent abortion. Severe physical and psychological sequelae after abortion increased 5-fold from 1980–1992 to 2013–2022. Among those whose most recent abortion occurred in 2003 or later, the risk of severe psychological sequelae was higher in 2013–2022, after the Korean Constitutional Court upheld the existing criminal codes, than in 2003–2012 (aOR, 2.31; 95% confidence interval, 1.09–4.91).
Conclusion
In the absence of institutionalized safe and respectful abortion services, severe physical and psychological sequelae among women who underwent induced abortion were more likely to occur. These findings highlight the importance of safe, affordable, nondiscriminatory, and respectful abortion care.
  • 3,574 View
  • 154 Download

Review Article

The effects of resistance training on hemoglobin A1c, body mass index, and muscle strength in patients with diabetes mellitus based on age (middle-aged and older adults): a systematic review and meta-analysis
Objectives
This study aimed to examine the effectiveness of resistance training on hemoglobin A1c (HbA1c) levels and body mass index in patients with diabetes mellitus, categorized by age.
Methods
A comprehensive search of English-language literature published between 1997 and 2025 was performed across 6 databases (Embase, CINAHL, Medline, Cochrane, PubMed, and PEDro). Standardized mean differences and 95% confidence intervals were calculated, and publication bias was assessed using funnel plots and Egger’s test. The Joanna Briggs Institute checklist was applied to evaluate study quality.
Results
Thirty randomized controlled trials met the inclusion criteria, comprising 620 participants in the older (<60 years of age) subgroup and 1,389 in the middle-aged (40–59 years of age) subgroup. In both subgroups, resistance training significantly reduced HbA1c levels and body mass index, while increasing muscle strength (primary outcome). It also significantly increased high-density lipoprotein, improved VO₂ peak, and reduced low-density lipoprotein (secondary outcomes). However, the effects of resistance training were significant only in the older-adult subgroup for total cholesterol and only in the middle-aged subgroup for triglycerides.
Conclusion
Resistance training is a recommended rehabilitation exercise for patients with diabetes mellitus. Routine resistance training has been shown to help maintain optimal HbA1c and body mass index levels and improve muscle strength. In addition, it does not pose a risk of adverse events in either middle-aged or older patients. Nonetheless, patients are advised to monitor blood glucose levels and adhere to a proper diet to achieve optimal outcomes.

Citations

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  • Brain glucodynamic variability is an essential feature of the metabolism–cognition relationship
    Hamish A. Deery, Emma Liang, Chris Moran, Gary F. Egan, Sharna D. Jamadar
    Proceedings of the National Academy of Sciences.2026;[Epub]     CrossRef
  • Impacts of Geri-Fit® on Health Outcomes in Older Adults: An Exploratory Study
    Allyson Mark, Wei-Chen Lee, Hani Serag, Namita Bhardwaj, Michael Goodman, Carlos Clark, Hanaa S. Sallam
    Healthcare.2026; 14(13): 1913.     CrossRef
  • 10,018 View
  • 221 Download
  • 2 Web of Science
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Editorial

  • 1,289 View
  • 57 Download
Original Articles
Association of demographic and biochemical factors with hypercalciuria among Meitei adults in Manipur, Northeast India: a cross-sectional study
Robertson Singh Aheibam, Malvika Yumnam, Erika Pebam, Henry Konjengbam, Suraj Singh Huidrom, Yaiphaba Meitei Sanjenbam
Osong Public Health Res Perspect 2025;16(5):519-529.
Published online October 17, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0157
Association of demographic and biochemical factors with hypercalciuria among Meitei adults in Manipur, Northeast India: a cross-sectional study
Objectives
This study aimed to investigate the association of demographic variables and serum calcium with hypercalciuria among the Meitei adult population of Manipur, Northeast India.
Methods
A cross-sectional study was conducted involving 413 participants (272 females and 141 males) aged 19 to 60 years. Participants were selected through a multistage sampling method from 5 valley districts of Manipur. Demographic and biochemical parameters were collected, including serum calcium, creatinine, and spot urine calcium and creatinine levels. One-way analysis of variance, Tukey’s post hoc test, chi-square test, multinomial logistic regression, and receiver operating characteristic (ROC) curve analysis were performed. The area under the ROC curve was calculated to determine the cut-off value of random urine calcium.
Results
The overall prevalence of hypercalciuria was 18.64%. The incidence of hypercalciuria increased with age; 41 to 60 age group were 3 times more likely to develop hypercalciuria than those in the 19 to 40 age group (95% confidence interval [CI], 1.86–5.47; p<0.001). A significant association (p<0.05) was also found between serum calcium and urine calcium levels. Hypocalcemic individuals were 3.5 times more likely to have hypercalciuria than normocalcemic individuals (95% CI, 1.33–9.31; p=0.01). ROC analysis revealed a predictive cut-off value of 23.07 mg/dL for random urine calcium.
Conclusion
This study demonstrates a high prevalence of hypercalciuria exceeding the global average. Given that Manipur has also been reported to have a high prevalence of kidney stones, this finding indicates a considerable health risk. Early intervention could therefore improve public health outcomes related to calcium and mineral metabolism.
  • 1,931 View
  • 64 Download
A confirmatory analysis of the knowledge, attitudes, and perceptions questionnaire for community-based surveillance of infectious diseases: a cross-sectional study in Malaysia
Ahmed Azeez Hasan, Anis Kausar Ghazali, Najib Majdi Yacoob, Norsa’adah Bachok, Suhaily Mohd Hairon, Nur Amira M. Nadir, Fatimah Muhd Shukri
Osong Public Health Res Perspect 2025;16(5):508-518.
Published online August 12, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0106
A confirmatory analysis of the knowledge, attitudes, and perceptions questionnaire for community-based surveillance of infectious diseases: a cross-sectional study in Malaysia
Objectives
This study aimed to validate the psychometric properties of the recently developed knowledge, attitudes, and perceptions questionnaire for community-based surveillance of infectious diseases (KAP-CBS-ID questionnaire), using confirmatory factor analysis (CFA) and item response theory (IRT).
Methods
A cross-sectional study using multistage sampling recruited 470 schoolteachers from Kelantan, Malaysia. The self-administered KAP-CBS-ID questionnaire consists of 3 domains: knowledge (31 items), attitudes (23 items), and perceptions (21-items). Two-parameter logistic (2-PL) IRT analysis and CFA were performed to validate the knowledge section. For attitudes and perceptions sections, CFA proceeded using a 4-factor model to evaluate both model fit and construct validity.
Results
Two-PL IRT analysis of the knowledge section resulted in elimination of 14 items due to inadequate discrimination or difficulty parameters. The 3-factor CFA model demonstrated good fit indices for knowledge (root mean square error of approximation [RMSEA], 0.028; comparative fit index [CFI], 0.945; Tucker-Lewis index [TLI], 0.941) without any modifications. The attitudes section required re-specification, ultimately yielding 21 items across 4 factors with acceptable fit indices (standardized root mean square residual [SRMR], 0.067; RMSEA, 0.055; CFI, 0.937; TLI, 0.927). Similarly, the perceptions section was refined to 17 items across 4 factors, showing good model fit (SRMR, 0.055; RMSEA, 0.059; CFI, 0.962; TLI, 0.954). Factor loadings ranged from 0.33 to 0.98, while Raykov’s rho reliability estimates ranged from 0.71 to 0.93. Factor determinacy exceeded 80% for all factors.
Conclusion
The KAP-CBS-ID is a valid and reliable instrument for assessing community representatives’ knowledge, attitudes, and perceptions regarding community-based surveillance of infectious diseases.

Citations

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  • Modeling social and behavioral factors associated with community participation in community-based surveillance of communicable diseases: a cross-sectional study in Kelantan, Malaysia
    Ahmed Azeez Hasan, Anis Kausar Ghazali, Norsa’adah Bachok, Najib Majdi Yaacob, Suhaily Mohd Hairon, Nur Amira Mohd Nadir, Fatimah Muhd Shukri
    Osong Public Health and Research Perspectives.2026; 17(3): 229.     CrossRef
  • 2,499 View
  • 92 Download
  • 1 Web of Science
  • Crossref
Relationship between diabetes medication self-efficacy and quality of life in older adults with diabetes: a cross-sectional study in Turkey
Nilhan Töyer Şahin, İlayda Kömürcü, Seda Aşcı
Osong Public Health Res Perspect 2025;16(5):498-507.
Published online September 30, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0218
Relationship between diabetes medication self-efficacy and quality of life in older adults with diabetes: a cross-sectional study in Turkey
Objectives
The aim of this study was to investigate the relationship between diabetes medication self-efficacy and quality of life in older adults with diabetes.
Methods
The study included 192 older adults who attended the diabetes clinic of a public hospital in Istanbul. Data were collected between June and October 2024. Participants were informed about the study and provided both verbal and written consent. Data collection instruments comprised a sociodemographic questionnaire, the diabetes medication self-efficacy scale, and the quality of life scale for older adults.
Results
Of the participants, 98 (51.0%) were women and 105 (54.7%) were aged 65 to 74 years. The mean diabetes medication self-efficacy score was 38.95±10.31, and the mean quality of life score was 18.24±6.37. A weak but statistically significant positive correlation was observed between the autonomy and satisfaction subscale of quality of life and the necessity subscale of self-efficacy (p<0.05).
Conclusion
This study, which examined the relationship between self-efficacy in diabetes management and quality of life in older adults, provides valuable guidance for clinical practice aimed at improving care for this population.
  • 2,207 View
  • 82 Download
Comparative effectiveness of construal-level messaging in the COVID-19 Vaccine Injury Compensation Program in the Republic of Korea: a randomized controlled trial
Jihyun Moon, Se-Hoon Jeong, Young June Choe, Cho Ryok Kang, Taemi Kim, Dooyoung Kim, Jong-Koo Lee
Osong Public Health Res Perspect 2025;16(5):486-497.
Published online September 12, 2025
DOI: https://doi.org/10.24171/j.phrp.2024.0354
Comparative effectiveness of construal-level messaging in the COVID-19 Vaccine Injury Compensation Program in the Republic of Korea: a randomized controlled trial
Objectives
This study aimed to assess the impact of high-level versus low-level construal messages about the coronavirus disease 2019 (COVID-19) Vaccine Injury Compensation Program (CVICP) on public attitudes toward the program and COVID-19 vaccination.
Methods
A randomized controlled experimental design was employed. Adults aged 18 to 64 residing in the Republic of Korea were randomly assigned to either an experimental group (high-level construal message) or a control group (low-level construal message). Both groups viewed a 2-minute video about the CVICP, with construal level as the sole variable. Pre- and post-intervention questionnaires evaluated attitudes toward the CVICP and COVID-19 vaccination, including satisfaction, perceived necessity, and perceived effectiveness in enhancing vaccine acceptance. Data were analyzed using the paired t-test, repeated measures 2-way analysis of variance, and multiple linear regression.
Results
The experimental group showed statistically significant improvements across all 6 attitude measures following exposure to the high-level construal message. By contrast, the control group demonstrated significant improvement in only 3 attitudes: satisfaction with the CVICP, willingness to recommend vaccination, and willingness for future vaccination. A significant difference between groups was observed for perceived effectiveness of the CVICP in enhancing vaccine acceptance (p=0.01), with high-level construal messaging being more impactful.
Conclusion
High-level construal messages are more effective than low-level messages in shaping public perceptions and addressing vaccine hesitancy. Policymakers and health authorities should incorporate high-level construal elements into communication strategies to build trust and support for vaccination programs.
  • 2,754 View
  • 53 Download
Factors influencing adherence to anti-tuberculosis treatment in Morocco: a cross-sectional study from the Béni Mellal-Khénifra region
Mohamed Dellal, Sanae Batoui, Youness Aassem, Khalid Habbari
Osong Public Health Res Perspect 2025;16(5):476-485.
Published online September 19, 2025
DOI: https://doi.org/10.24171/j.phrp.2025.0153
Factors influencing adherence to anti-tuberculosis treatment in Morocco: a cross-sectional study from the Béni Mellal-Khénifra region
Objectives
Adherence to anti-tuberculosis treatment is essential for achieving successful outcomes and preventing the emergence of drug-resistant strains. This study aimed to evaluate adherence levels and identify factors associated with non-adherence among tuberculosis patients in the Béni Mellal-Khénifra region of Morocco. We hypothesized that sociodemographic, clinical, and behavioral factors influence adherence.
Methods
A facility-based cross-sectional study was conducted from January 2023 to December 2024 in 2 Tuberculosis and Respiratory Disease Diagnostic Centers in the Béni Mellal-Khénifra region. A total of 481 patients who had been on treatment for at least 2 months were recruited using convenience sampling. Data were collected through structured, pre-tested questionnaires administered in face-to-face interviews and verified against treatment cards and medical records. Adherence was defined as taking ≥90% of prescribed doses. Multivariable logistic regression was used to identify independent predictors of non-adherence.
Results
Among the 481 participants, 8.1% were non-adherent. Significant predictors of non-adherence included forgetfulness (adjusted odds ratio [AOR], 38.84; 95% confidence interval [CI], 11.35–132.88), adverse effects (AOR, 14.26; 95% CI, 3.17–64.13), male sex (AOR, 6.77; 95% CI, 1.45–31.60), rural residence (AOR, 4.42; 95% CI, 1.37–14.25), self-adjusted dosing (AOR, 5.83; 95% CI, 1.20–28.34), stopping treatment after symptom improvement (AOR, 6.56; 95% CI, 1.34–32.14), and missed follow-up visits (AOR, 6.74; 95% CI, 1.56–29.19).
Conclusion
Although overall adherence was high, 8.1% of patients were non-adherent. Strategies to improve adherence should focus on addressing forgetfulness, managing side effects, enhancing access in rural areas, and reinforcing patient education and follow-up systems to improve treatment outcomes in this and similar settings.

Citations

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  • Longitudinal Observation by Optical Coherence Tomography in Patients Treated with Ethambutol: A Systematic Review and Meta-Analysis
    Rui Luo, Jin Ma, Yong Zhong
    Journal of Clinical Medicine.2026; 15(3): 1230.     CrossRef
  • Non-Adherence to Anti-Tuberculosis Treatment and Its Determinants Among Tuberculosis Patients in Tanzania
    Meshack Morice, Bernadetha Hugho Kimario, Indo Ndaigeze, Damas Dismas Nyabenda
    Journal of Community Health.2026; 51(4): 648.     CrossRef
  • 1,774 View
  • 98 Download
  • 2 Web of Science
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The impact of digital literacy on older adults’ self-rated health, depression, and life satisfaction: a cross-sectional study using 2023 National Survey of Older Koreans
Objectives
This study examined the associations between digital literacy and self-rated health (SRH), depression, and life satisfaction among older adults in the Republic of Korea.
Methods
Data were obtained from the 2023 National Survey of Older Koreans (n=9,951). Digital literacy was evaluated based on participants’ ability to use 8 smartphone functions and their perceived difficulty adapting to a digital society. Dependent variables included SRH, depression (measured using the short form of Geriatric Depression Scale), and life satisfaction (assessed through a composite score across 7 domains). Multiple logistic regression was applied for SRH and depression, while linear regression was conducted for life satisfaction, adjusting for sociodemographic and health-related covariates.
Results
Higher digital literacy was significantly associated with better SRH and greater life satisfaction. Compared to participants with no digital skills, those with moderate or high digital literacy had higher odds of reporting good SRH and significantly higher life satisfaction scores. Older adults who reported difficulty adapting to a digital society demonstrated significantly lower SRH and life satisfaction. However, after adjusting for covariates, the association between digital literacy and depression was not statistically significant.
Conclusion
Higher digital literacy is linked to better SRH and greater life satisfaction. Moreover, digital literacy reduced the explanatory power of socioeconomic variables, suggesting that it serves as an important behavioral determinant. These findings underscore the importance of promoting digital literacy as a means of improving health equity and well-being in aging populations.

Citations

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  • The Effect of Digital Literacy on Depression Among Older Adults With Chronic Diseases: The Moderating Role of Self-Rated Health
    Hyein Seo, Subin Yu
    The International Journal of Aging and Human Devel.2026; 103(4): 480.     CrossRef
  • Digital device use and disparities in health literacy among older adults
    Heeran Chun, Cheong-Seok Kim, Il-Ho Kim
    Korean Journal of Health Education and Promotion.2026; 43(2): 87.     CrossRef
  • Impact of an Interaction-Oriented, Information and Communication Technology-Based Community Care Service on Nutritional Status and Dietary Behavior of Community-Dwelling Older Adults: A Quasi-Experimental Study
    Seojin Yun, Seulgi Lee, Eun Young Lee, Kirang Kim
    Preventive Nutrition and Food Science.2026;[Epub]     CrossRef
  • Predicting longitudinal depressive symptom trajectories among older Chinese adults with chronic health conditions: An interpretable machine learning study
    Zhan Yu, Anao Zhang, Kaipeng Wang, Qiuling An, Meiyan Chen, Yuting Wang, Zeqiang Wang
    International Psychogeriatrics.2026; : 100270.     CrossRef
  • Sustaining Social Connection in a Super-Aged Society: Changes in the Association Between Social Ties and Life Satisfaction Among Korean Older Adults, 2011–2023
    Seonmi Choi, Junghyun Kim
    Sustainability.2026; 18(18): 9449.     CrossRef
  • Digital Ageism and Ageism Among Middle-Aged and Older Adults and the Mediating Role of Expectations Regarding Aging: A Cross-Sectional Study
    Gahye Kim, Aeri Jung
    Research in Community and Public Health Nursing.2026; 37: 403.     CrossRef
  • Disaggregating Digital Competence: Social Activity Participation and Depressive Symptoms Among Korean Older Adults
    Young-Mi Jung, NakHyeok Choi
    Behavioral Sciences.2026; 16(10): 1742.     CrossRef
  • The impact of digitalisation on the development of physical activity of older people (through the example of European Union countries)
    Zhaxat Kenzhin, Tursynzada Kuangaliyeva, Assem Aitkaliyeva, Yerbol Myrzabossynov, Aigerim Zhunussova, Odiljon Dadabayev
    Frontiers in Public Health.2026;[Epub]     CrossRef
  • 3,977 View
  • 172 Download
  • 4 Web of Science
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