한빛사논문
경희대학교
Jiyeon Oh, MD1; Myeongcheol Lee, MS2,3; Hojae Lee, MS2,3; Hwi Yang, MS2,3; Jaeyu Park, MS2,3; Masoud Rahmati, PhD4,5; Ai Koyanagi, MD, PhD6; Lee Smith, PhD7; Guillaume Fond, PhD8; Laurent Boyer, MD, PhD8; Min Seo Kim, MD, PhD9; Seung Won Lee, MD, PhD10; Guillermo F. López Sánchez, PhD11; Elena Dragioti, PhD12,13; Ho Geol Woo, MD, PhD14; Dong Keon Yon, MD, PhD1,3,15
1Department of Medicine, Kyung Hee University College of Medicine, Seoul, South Korea
2Center for Digital Health, Medical Science Research Institute, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, South Korea
3Department of Regulatory Science, Kyung Hee University, Seoul, South Korea
4Department of Physical Education and Sport Sciences, Faculty of Literature and Human Sciences, Lorestan University, Khoramabad, Iran
5Department of Physical Education and Sport Sciences, Faculty of Literature and Humanities, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran
6Research and Development Unit, Parc Sanitari Sant Joan de Deu, Barcelona, Spain
7Centre for Health, Performance and Wellbeing, Anglia Ruskin University, Cambridge, United Kingdom
8CEReSS-Health Service Research and Quality of Life Center, Aix-Marseille University, Marseille, France
9Cardiovascular Disease Initiative, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
10Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon, South Korea
11Division of Preventive Medicine and Public Health, Department of Public Health Sciences, School of Medicine, University of Murcia, Murcia, Spain
12Pain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
13Research Laboratory Psychology of Patients, Families, and Health Professionals, Department of Nursing, School of Health Sciences, University of Ioannina, Ioannina, Greece
14Department of Neurology, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, South Korea
15Department of Pediatrics, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, South Korea
Dr Oh and Mr M. Lee contributed equally to this work.
Corresponding Authors: Dong Keon Yon, MD, PhD, Ho Geol Woo, MD, PhD
Abstract
Importance: Only a few studies have examined the long-term trends of hand and oral hygiene, especially among adolescents.
Objective: To investigate the 15-year trends in frequency of handwashing and toothbrushing and examine the factors associated with hand and oral hygiene, particularly during the COVID-19 pandemic.
Design, setting, and participants: This cross-sectional study, performed from January 1, 2008, to December 31, 2022, used general population-based data from 963 644 individuals in a national representative survey (Korea Youth Risk Behavior Web-based Survey [KYRBS]).
Exposure: COVID-19 pandemic.
Main outcomes and measures: Trends in hand and oral hygiene practices were measured by how frequently adolescents washed their hands and whether they fulfilled the recommended guidelines for toothbrushing. An interrupted time series analysis using linear and logistic regression models was performed to assess any associations with the COVID-19 pandemic. Hand and oral hygiene behaviors before and during the pandemic in each sociodemographic subgroup were also compared.
Results: In the 963 644 adolescents (495 697 [51.4%] male; mean [range] age, 15.01 [12-18] years) who participated in the KYRBS from 2008 to 2022, a 73.3% (95% CI, 59.4%-97.4%; P < .001) immediate increase was seen in overall hand hygiene behavior at the onset of the COVID-19 pandemic compared with the prepandemic period, with a sustained decrease thereafter (β = -0.018; 95% CI, -0.022 to -0.015; P < .001). Meanwhile, no immediate increase was observed in terms of overall oral hygiene behavior (0.1%; 95% CI, -0.9% to 1.1%; P = .82); however, there was a sustained decrease during the pandemic (β = -0.018; 95% CI, -0.020 to -0.016; P < .001). Older age, female sex, nonsmoking status, alcohol use, low household economic level, and poor school performance were significantly associated with poor hand hygiene during the pandemic.
Conclusions and relevance: In this cross-sectional study of South Korean adolescents, an increase in the prevalence of hand hygiene was observed during the early pandemic; however, this prevalence decreased over time. Meanwhile, the decrease in the prevalence of oral hygiene was more pronounced during the pandemic. This study recommends stronger guidelines for adolescent health coaches, such as teachers or public health advisers, regarding hygiene behaviors, even after the COVID-19 pandemic ends.
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