Kim Sun-Young, Kim Soo In, Lim Weon-Jeong
Department of Psychiatry, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Republic of Korea.
Department of Psychiatry, Ewha Womans University Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Republic of Korea.
Psychiatry Investig. 2021 May;18(5):400-407. doi: 10.30773/pi.2020.0412. Epub 2021 Apr 30.
This study investigated whether sleep duration and working hours were associated with the risk of suicidal ideation.
Data from 13,628 shift workers (age ≥19) were obtained from the nationwide cross-sectional Korea National Health and Nutrition Examination Surveys conducted in 2007-2018. We included healthy shift workers without depressive disorders and chronic medical illnesses. Sleep duration, working hours, and suicidal ideation were assessed using a self-reported questionnaire. Logistic regressions were used to examine the association of sleep duration and working hours with the risk of suicidal ideation. We examined interactions between sleep duration and working hours in association with suicidal ideation. In addition, interactions of sex or age were also analyzed.
Shift workers sleeping for <6 and ≥10 hours/day were associated with suicidal ideation compared with those sleeping for 7 to <9 hours/day. Individuals working >52 hours/week had a higher risk of suicidal ideation compared with those working ≤40 hours/week. In terms of interaction by sex or age groups in the association between working hours and the risk of suicidal ideation, the relationship was stronger for men than for women and for those aged <45 years than for those aged ≥45 years.
Shorter or longer sleep durations, and long working hours were associated with a higher risk of suicidal ideation. Under long working hours, male shift workers or those aged <45 years were more vulnerable to suicidal ideation.
本研究调查了睡眠时间和工作时长是否与自杀意念风险相关。
数据来自于2007 - 2018年开展的全国性横断面韩国国民健康与营养检查调查，共纳入13628名轮班工作者（年龄≥19岁）。我们纳入了无抑郁症和慢性疾病的健康轮班工作者。睡眠时间、工作时长和自杀意念通过自我报告问卷进行评估。采用逻辑回归分析睡眠时间和工作时长与自杀意念风险之间的关联。我们还研究了睡眠时间和工作时长与自杀意念之间的交互作用。此外，还分析了性别或年龄的交互作用。
与每天睡眠7至<9小时的轮班工作者相比，每天睡眠<6小时和≥10小时的轮班工作者与自杀意念相关。每周工作>52小时的个体比每周工作≤40小时的个体有更高的自杀意念风险。在工作时长与自杀意念风险关联中按性别或年龄组的交互作用方面，男性的关系比女性更强，年龄<45岁的个体比年龄≥45岁的个体更强。
较短或较长的睡眠时间以及较长的工作时长与较高的自杀意念风险相关。在工作时长较长的情况下，男性轮班工作者或年龄<45岁的个体更容易产生自杀意念。
