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Association of social jetlag with cigarette smoking, smoking intensity, and quitting intentions among Korean workers

Authors
 Baek, Seong-Uk  ;  Yoon, Jin-Ha 
Citation
 JOURNAL OF PUBLIC HEALTH, 2025-06 
Article Number
 fdaf062 
Journal Title
JOURNAL OF PUBLIC HEALTH
ISSN
 1741-3842 
Issue Date
2025-06
Keywords
circadian misalignment ; health-related behavior ; lifestyle ; nicotine ; public health ; sleep ; tobacco
Abstract
Background In modern urban environments, individuals consistently encounter artificial light exposure, which disrupts their biological rhythms. This phenomenon contributes to social jetlag, where individuals experience a misalignment between biological and social rhythms. We explored the association between social jetlag and smoking behaviors in workers.Materials and methods This cross-sectional study included Korean workers. Social jetlag was calculated as the difference in the mid-point between sleep onset and offset times on free days and workdays. Outcome variables were self-reported cigarette smoking status, cotinine-verified smoking intensity, and quitting intention among smokers. Urine cotinine-to-creatinine ratio was used to assess smoking intensity. Logistic regressions were used to estimate odds ratios (OR) and 95% confidence intervals (CIs).Results Among the sample, 12.0% had >= 120 min of social jetlag. Social jetlag of >= 120 min had a positive association with self-reported cigarette smoking (OR: 2.10, 95% CI: 1.73-2.55) and had a negative association with quitting intention (OR: 0.52, 95% CI: 0.29-0.90) compared with social jetlag of 0-59 min. Social jetlag of >= 120 min was associated with both low- (OR: 2.08, 95% CI: 1.57-2.75) and high-intensity smoking (OR: 2.35, 95% CI: 1.79-3.08).Conclusion Social jetlag is positively associated with cigarette smoking, smoking intensity, while negatively associated with quitting intentions among current smokers.
DOI
10.1093/pubmed/fdaf062
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Yoon, Jin Ha(윤진하) ORCID logo https://orcid.org/0000-0003-4198-2955
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/208414
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