Earticle

초록

영어

Purpose : This study aimed to examine the relationship between social jetlag and physical discomfort of wage workers and to verify the mediating effect of fatigue on this relationship. Methods : This cross-sectional secondary data analysis utilized the data from the 2024 Korea National Health and Nutrition Examination Survey (KNHANES). The study included 2,220 wage workers aged 19 years or older with the complete data on primary variables. Social jetlag was calculated as the absolute difference (in hours) between mid-sleep time on off days and workdays. Fatigue was measured using a single fatigue item from the Patient Health Questionnaire-9 (range: 0–3), and physical discomfort was measured as the number of days during the past two weeks in which poor physical health limited activities (range: 0–14 days). Complex sample analyses incorporating sampling weights, stratification, and clustering were performed using R version 4.4.3. The mediating effect of fatigue was evaluated using weighted linear regression and 5,000 bootstrap resamples after adjusting for sociodemographic, occupational, and health-related covariates. Results : Social jetlag was positively associated with fatigue (B=0.06, p=.007), and fatigue was positively associated with physical discomfort (B=0.55, p<.001). The direct effect of social jetlag on physical discomfort was not statistically significant (B=-0.12, p=.113). However, the indirect effect of social jetlag on physical discomfort through fatigue was statistically significant (indirect effect=0.03, 95% CI 0.01~0.06), indicating an indirect-only mediation pattern. Conclusion : A significant indirect association between social jetlag and physical discomfort through fatigue was observed among wage workers. These findings indicate that occupational health interventions should go beyond simply managing sleep duration to incorporate fatigue assessment, sleep hygiene education, and organizational strategies aimed at minimizing sleep-schedule discrepancies between workdays and off days.

목차

Abstract
Ⅰ. 서론
Ⅱ. 연구방법
1. 연구설계
2. 연구대상
3. 자료수집방법
4. 연구도구
5. 자료분석방법
Ⅲ. 연구결과
1. 대상자의 일반적 특성, 특성에 따른 신체적불편감 및 주요 변수 간 상관관계
2. 신체적 불편감 관련 요인
3. 사회적 시차와 신체적 불편감의 관계에서피로의 매개효과
Ⅳ. 논의
Ⅴ. 결론 및 제언
Conflicts of Interest
참고문헌

키워드

저자

• 이정희 [ Jung-Hee Lee | 제주항공 차장 ]
• 정혜선 [ Hye-Sun Jung | 가톨릭대학교 의과대학 예방의학교실 교수 ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  직업건강연구 [Korean Journal of Occupational Health]

• 간기

  연3회

• pISSN

  2672-0272

• 수록기간

  2018~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 512 DDC 610