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Original Article
Solitary and Social Drinking in South Korea: An Exploratory Study
Ju Moon Park, Aeree Sohn, Chanho Choi
Osong Public Health Res Perspect. 2020;11(6):365-372.   Published online December 22, 2020
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  • 5 Web of Science
  • 5 Crossref
AbstractAbstract PDF

This study aimed to identify differences in drinking norms, heavy drinking, and motives between types of drinkers (abstainers, solitary, and social drinkers) in a representative sample of Korean adults.


An online survey of people registered on the electoral roll were randomly invited to be part of the “National Korean Drinking Culture Study” conducted in 2018 (n = 3,015). Participants included 1,532 men and 1,469 women aged 19–60 years. Questions included the number of times they drank in the last month, what they drank, and the volume drank. The amount of pure alcohol consumed was calculated. Drinking norms, motives, and types were determined in the survey questions.


Solitary drinkers were more likely to be divorced or separated, less educated, and marginally employed. Solitary drinking peaked in those in their 30s (18.5%) and social drinkers in their 50s (68.1%). Solitary drinkers drank more frequently compared with social drinkers (6.1 vs. 3.6 times per month, p < 0.001), and consumed a significantly larger quantity of alcohol (69.5 g vs. 46.8 g per week). Solitary drinkers were more accepting of drinking-related behaviors in diverse situations compared with social drinkers. The regression analysis revealed that personal drinking motives were the most important factor influencing the frequency and quantity of alcohol consumption in both solitary and social drinking.


Solitary drinkers may be more vulnerable to alcohol abuse than social drinkers.


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Review Article
Traditional and Modern Cell Culture in Virus Diagnosis
Ali Hematian, Nourkhoda Sadeghifard, Reza Mohebi, Morovat Taherikalani, Abbas Nasrolahi, Mansour Amraei, Sobhan Ghafourian
Osong Public Health Res Perspect. 2016;7(2):77-82.   Published online April 30, 2016
Correction in: Osong Public Health Res Perspect 2020;11(4):266
  • 6,878 View
  • 117 Download
  • 61 Crossref
AbstractAbstract PDF
Cell cultures are developed from tissue samples and then disaggregated by mechanical, chemical, and enzymatic methods to extract cells suitable for isolation of viruses. With the recent advances in technology, cell culture is considered a gold standard for virus isolation. This paper reviews the evolution of cell culture methods and demonstrates why cell culture is a preferred method for identification of viruses. In addition, the advantages and disadvantages of both traditional and modern cell culture methods for diagnosis of each type of virus are discussed. Detection of viruses by the novel cell culture methods is considered more accurate and sensitive. However, there is a need to include some more accurate methods such as molecular methods in cell culture for precise identification of viruses.


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Original Article
Evaluation and Comparison of Molecular and Conventional Diagnostic Tests for Detecting Tuberculosis in Korea, 2013
Sang-Hee Park, Chang-Ki Kim, Hye-Ran Jeong, Hyunjin Son, Seong-Han Kim, Mi-Sun Park
Osong Public Health Res Perspect. 2014;5(Suppl):S3-S7.   Published online December 31, 2014
  • 3,201 View
  • 22 Download
  • 7 Crossref
AbstractAbstract PDF
A fast and accurate diagnosis is necessary to control and eliminate tuberculosis (TB). In Korea, TB continues to be a serious public health problem. In this study, diagnostic tests on clinical samples from patients suspected to have TB were performed and the sensitivity and specificity of the various techniques were compared. The main objective of the study was to compare various diagnostic tests and evaluate their sensitivity and specificity for detecting tuberculosis.
From January 2013 to December 2013, 170,240 clinical samples from patients suspected to have TB were tested with smear microscopy, acid-fast bacilli culture, and real-time polymerase chain reaction (PCR). The test results were compared and data were analyzed.
A total of 8216 cultures tested positive for TB (positive detection rate, 4.8%). The contamination rate in the culture was 0.6% and the isolation rate of nontuberculous mycobacteria was 1.0%. The sensitivity and specificity of smear microscopy were 56.8% and 99.6%, respectively. The concordance rate between the solid and liquid cultures was 92.8%. Mycobacterium isolates were not detected in 0.4% of the cases in the liquid culture, whereas no Mycobacterium isolates were detected in 6.8% of the cases in the solid culture. The sensitivity and specificity of real-time PCR for the solid culture were 97.2% and 72.4%, respectively, whereas the corresponding data for the liquid culture were 93.5% and 97.2%.
The study results can be used to improve existing TB diagnosis procedure as well as for comparing the effectiveness of the assay tests used for detecting Mycobacterium tuberculosis isolates.


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PHRP : Osong Public Health and Research Perspectives