Kang Juseung, Kim Jichul, Lee Jooyoung, Yeo Hyewon, Hwang Yunjee, Lee Somi, Jeon Sehyun, Kim Seog Ju
Department of Psychiatry, Sungkyunkwan University College of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
Seoulgardenclinic, Seoul, Republic of Korea.
Psychiatry Investig. 2024 Aug;21(8):905-911. doi: 10.30773/pi.2024.0037. Epub 2024 Aug 2.
We investigated the difference in sleep inertia between shift workers (SWs) and non-shift workers (NSWs) and the effects of depressive symptoms, sleepiness, insomnia, and chronotype on sleep inertia in SWs and NSWs.
Altogether, 4,561 SWs (2,142 men and 2,419 women, aged 36.99±9.84 years) and 2,093 NSWs (999 men and 1,094 women, aged 37.80±9.73 years) participated in the current study. All participants completed the Sleep Inertia Questionnaire (SIQ), Epidemiological Studies Depression Scale (CESD), Epworth Sleepiness Scale (ESS), Insomnia Severity Index (ISI), and Morningness-Eveningness Questionnaire (MEQ) through an online survey.
SWs reported higher SIQ scores than NSWs after controlling for CESD, ESS, ISI, or MEQ. The CESD, ESS, ISI, and MEQ predicted SIQ in both SWs and NSWs. The effects of CESD and MEQ on SIQ were stronger in SWs and NSWs, respectively. The indirect effects of CESD and MEQ on SIQ via ESS were significantly moderated by work schedules.
SWs showed higher sleep inertia than NSWs. The effect of chronotypes on sleep inertia was more prominent in NSWs than in SWs. However, the effect of depressive symptoms on sleep inertia was more prominent in SWs than in NSWs. Moreover, the effect of depressive symptoms or chronotypes on sleep inertia was mediated by sleepiness, and such indirect effects were significantly different among the participants stratified by work schedules.
我们研究了轮班工作者（SWs）和非轮班工作者（NSWs）之间睡眠惰性的差异，以及抑郁症状、嗜睡、失眠和昼夜节律类型对SWs和NSWs睡眠惰性的影响。
共有4561名SWs（2142名男性和2419名女性，年龄36.99±9.84岁）和2093名NSWs（999名男性和1094名女性，年龄37.80±9.73岁）参与了本研究。所有参与者通过在线调查完成了睡眠惰性问卷（SIQ）、流行病学研究抑郁量表（CESD）、爱泼沃斯嗜睡量表（ESS）、失眠严重程度指数（ISI）和晨型-夜型问卷（MEQ）。
在控制CESD、ESS、ISI或MEQ后，SWs的SIQ得分高于NSWs。CESD、ESS、ISI和MEQ在SWs和NSWs中均能预测SIQ。CESD和MEQ对SIQ的影响分别在SWs和NSWs中更强。CESD和MEQ通过ESS对SIQ的间接影响受到工作时间表的显著调节。
SWs的睡眠惰性高于NSWs。昼夜节律类型对睡眠惰性的影响在NSWs中比在SWs中更显著。然而，抑郁症状对睡眠惰性的影响在SWs中比在NSWs中更显著。此外，抑郁症状或昼夜节律类型对睡眠惰性的影响是通过嗜睡介导的，并且在按工作时间表分层的参与者中，这种间接影响存在显著差异。
