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Original Article
- The risk of insomnia by work schedule instability in Korean firefighters
- Saebomi Jeong, Jeonghun Kim, Sung-Soo Oh, Hee-Tae Kang, Yeon-Soon Ahn, Kyoung Sook Jeong
- Ann Occup Environ Med 2024;36:e24. Published online September 10, 2024
- DOI: https://doi.org/10.35371/aoem.2024.36.e24
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Abstract
Abstract in Korean
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Supplementary Material
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ePub - Background
Firefighters are exposed to shift work, as well as unpredictable emergency calls and traumatic events, which can lead to sleep problems. This study aimed to investigate the risk of insomnia by work schedule instability in Korean firefighters.
Methods
This study used the Insomnia Severity Index to assess the insomnia in firefighters. The work schedule stability was classified with the frequency of the substitute work and the timing of notification for work schedule changes. Logistic regression analysis was used to assess the adjusted odds ratio of insomnia by work schedule stability with covariates including sex, age, education, smoking, alcohol, caffeine intake, shift type, job, and underlying conditions.
Results
Of the 8,587 individuals, 751 (8.75%) had moderate to severe insomnia (Insomnia Severity Index ≥ 15). The prevalence of insomnia was statistically significantly higher as the frequency of substitute work increased: <1 time per month (6.8%), 1–2 times (9.5%), 3–5 times (13.4%), and more than 5 times (15.7%) (p < 0.001). Additionally, the prevalence of insomnia was statistically significantly higher when the timing of the schedule change notification was urgent or irregular: no change or several weeks before (5.4%), several days before (7.9%), one day before or on the day (11.2%), irregularly notification (11.6%) (p < 0.001). In comparison to the group with good frequency of the substitute work/good timing of schedule change notification group, the adjusted odds ratios of insomnia were 1.480 (95% confidence interval [CI]: 1.237–1.771) for Good/Bad group, 1.862 (95% CI: 1.340–2.588) for Bad/Good group, and 1.885 (95% CI: 1.366–2.602) for Bad/Bad group.
Conclusions
Work schedule instability was important risk factor of insomnia in firefighters. It suggests that improving the stability of work schedules could be a key strategy for reducing sleep problems in this occupational group. - 한국 교대근무 소방관에서 근무 스케줄 불안정성에 따른 불면증 유병 위험
목적
한국 교대근무 소방관에서 근무 스케줄 불안정성이 불면증 유병 위험을 평가하였다.
방법
한국판 불면증 심각도 평가척도를 이용하여 불면증을 평가하였다. 근무 스케줄 안정성으로는 월별 대체 근무 횟수 및 근무일정 변경 통보 시점으로 분류하였다. 월별 대체 근무 횟수 및 근무일정 변경 통보 시점을 각각 좋음, 나쁨으로 분류하고, 두 요인을 조합하여 좋음/좋음, 좋음/나쁨, 나쁨/좋음, 나쁨/나쁨의 4개 그룹으로 나누었다. 통계분석은 카이제곱검정, t-검정, 로지스틱 회귀 분석을 사용하였다.
결과
8,587명 중 751명(8.75%)은 중등도 이상의 불면증이 있었다. 별 대체근무 일수가 증가할수록, 근무 일정 변화를 미리 고지하지 않을수록 불면증 유병률이 유의하게 높았다. 4개의 그룹으로 나누어 근무 예측 가능성과 불면증의 연관성을 분석한 결과, 대체 근무 빈도가 “좋음”그룹/근무일정 변경 통보 시점이 “좋음” 그룹과 비교하여 불면증의 보정 비차비는 “좋음/나쁨” 그룹은 1.480(95%신뢰구간: 1.237~1.771), “나쁨/좋음” 그룹은 1.862(95% CI: 1.340~2.588), “나쁨/나쁨”그룹은 1.885(95% CI: 1.366~2.602)였다.
결론
근무 스케줄 안정성이 좋지 못할수록 불면증의 위험성이 높았다.
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Original Article
- Risk of insomnia symptoms according to Work-Family Conflict by workers’ characteristics
- Kwanghyun Seo, Seungjun Ryu, Saebomi Jeong, Hee-Tae Kang, Sung-Kyung Kim, Sang-Baek Koh, Kyoung Sook Jeong, Sung-Soo Oh
- Ann Occup Environ Med 2023;35:e36. Published online August 23, 2023
- DOI: https://doi.org/10.35371/aoem.2023.35.e36
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Abstract
Abstract in Korean
PDFPubReaderePub
Background Work-Family Conflict means that the demands of work and family roles cannot be met simultaneously, so one cannot concentrate on one’s work or family role. This conflict can negatively affect mental health and cause insomnia symptoms.
Methods This study was conducted on 20,442 subjects. Insomnia symptoms were assessed using the Minimal Insomnia Symptom Scale, and other variables were assessed using the questionnaire method. Logistic regression analyses were performed to evaluate the effect of Work-Family Conflict on insomnia symptoms, and subgroup logistic regression analyses were also performed.
Results The number of people with insomnia symptoms was 4,322 (15.1%). Compared with Low Work-Family Conflict, the odds ratios (ORs) for the risk of insomnia symptoms were 1.84 (95% confidence interval: 1.56–2.16) in High work-to-family conflict, 1.16 (1.02–1.32) in High family-to-work conflict, and 3.19 (2.87–3.55) in High Work-Family Conflict. The ORs were higher for men than women in High WFC but higher for women than men in High Work-Family Conflict.
Conclusions The risk of insomnia symptoms was highest in High Work-Family Conflict.
- 근로자 특성별 일-가정 갈등에 따른 불면증 증상의 발생 위험
목적
일-가정 갈등이 근로자의 불면증 증상 발생에 미치는 영향을 확인하고자 한다.
방법
이 연구는 20,442명의 피험자를 대상으로 수행되었다. 불면증 증상은 Minimal Insomnia Symptom Scale을 사용하여 평가하였고, 기타 변수는 설문지 방법을 사용하여 수집하였다. 일-가정 갈등이 불면증 증상 발생에 미치는 영향을 알아보기 위해 로지스틱 회귀 분석을 수행하였으며, 하위그룹 로지스틱 회귀 분석 또한 수행하였다.
결과
불면증이 있는 사람은 4,322명(15.1%)이었다. 전체 일-가정 갈등이 낮은 근로자와 비교했을 때, 불면증 증상 발생에 대한 오즈비는 WFC가 높은 근로자에서 1.84(95% 신뢰 구간 1.56-2.16), FWC가 높은 근로자에서 1.16(95% CI 1.02-1.32), 전체 일-가정 갈등이 높은 근로자에서 3.19(95% CI 2.87-3.55)이었다. 남성과 여성을 나누어 분석했을 때, WFC가 높은 근로자에서는 남성이 여성보다 오즈비가 높았으나 전체 일-가정 갈등이 높은 근로자에서는 여성이 남성보다 오즈비가 높았다.
결론
전체 일-가정 갈등이 높은 근로자에서 불면증 증상의 발생 위험이 가장 컸다. -
Citations
Citations to this article as recorded by
- Female workers with long working hours are more likely to have depressive symptoms when having family-to-work conflict
Garin Lee, Ji-Hwan Kim, Seung-Sup Kim
International Archives of Occupational and Environmental Health.2024; 97(2): 199. CrossRef - Association between long working hours and engagement in preventive healthcare services in Korean workers: Findings from the Korean National Health and Nutrition Examination Survey
Seong-Uk Baek, Yu-Min Lee, Jin-Ha Yoon
Preventive Medicine.2024; 180: 107849. CrossRef - Difficulty Falling Asleep, Nocturnal Awakening, Sleep Dissatisfaction, and Irritability in the General Population
Tetsuya Akaishi
The Tohoku Journal of Experimental Medicine.2024; 263(4): 261. CrossRef - Association between single-person household wage workers in South Korea and insomnia symptoms: the 6th Korean Working Conditions Survey (KWCS)
Yoon Ho Lee, Yong-Jin Lee, Eun-Chul Jang, Young-Sun Min, Soon-Chan Kwon
Ann Occup Environ Med.2024; 36: e25. CrossRef
- Female workers with long working hours are more likely to have depressive symptoms when having family-to-work conflict
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