Sleep duration and quality in permanent night work: an observational field study.

IF 2.6 3区 医学 Q2 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Kirsten Nabe-Nielsen, Ann Dyreborg Larsen, Anne Emily Saunte Fiehn Arup, Mette Sallerup, Vivi Schlünssen, Åse Marie Hansen, Anne Helene Garde
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引用次数: 0

Abstract

Purpose: Permanent night workers conceivably show better adaptation of circadian rhythms to night work than shift workers and therefore better possibilities of obtaining sufficient sleep of good quality after night shifts. We investigated the effect of night shifts including number of consecutive shifts on sleep among self-selected permanent night workers, and studied if the effect of night shifts differed between morning and evening types and compared with 3-shift workers.

Methods: The study population included 90 permanent night workers followed for 14 days (warehouse workers, 1228 observation days, 80% males). For comparison, we included 70 3-shift workers followed for 26 days (police officers, 1774 observation days, 100% men). Total sleep time (TST), primary sleep duration (PSD), and sleep efficiency were assessed by actigraphy. Measures of sleep quality and diurnal type were self-reported.

Results: Among permanent night workers, TST, PSD, difficulties falling asleep, disturbed sleep, and the number of awakenings decreased after night shifts compared with days without night work. Sleep efficiency, difficulties awakening, and non-refreshing sleep increased. More consecutive night shifts were associated with shorter TST and PSD. Sleep outcomes did not differ by diurnal type. Permanent night workers had fewer awakenings after night shifts than 3-shift workers, but no other differences were observed.

Conclusion: This study does not provide evidence that supports recommendation of permanent night work to reduce adverse effects of night shifts on sleep. A limited number of consecutive night shifts is recommended to reduce accumulation of sleep debt.

长期夜间工作的睡眠时间和质量:一项实地观察研究。
目的:可以想象,与轮班工人相比,长期夜班工人对夜间工作的昼夜节律有更好的适应性,因此在夜班后更有可能获得充足、高质量的睡眠。我们调查了夜班(包括连续轮班次数)对自我选择的长期夜班工人睡眠的影响,并研究了夜班的影响在早晚班之间以及与三班制工人相比是否存在差异:研究对象包括 90 名长期夜班工人(仓库工人,1228 个观察日,80% 为男性),为期 14 天。作为对比,我们对 70 名三班倒工人进行了为期 26 天的跟踪调查(警察,1774 个观察日,100% 男性)。总睡眠时间(TST)、主要睡眠时间(PSD)和睡眠效率均由动电仪进行评估。睡眠质量和昼夜类型的测量结果均为自我报告:结果:在长期从事夜班工作的人员中,与不从事夜班工作的人员相比,夜班后的睡眠时间(TST)、睡眠持续时间(PSD)、入睡困难、睡眠紊乱和觉醒次数均有所减少。睡眠效率、觉醒困难和非恢复性睡眠则有所增加。连续夜班次数越多,TST 和 PSD 越短。昼夜类型不同,睡眠结果也不同。与三班制工人相比,长期夜班工人在夜班后觉醒的次数较少,但没有观察到其他差异:这项研究没有提供证据支持为减少夜班对睡眠的不利影响而推荐长期夜班的建议。建议进行有限次数的连续夜班,以减少睡眠债务的积累。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Archives of Occupational and Environmental Health
International Archives of Occupational and Environmental Health 医学-公共卫生、环境卫生与职业卫生
CiteScore
5.60
自引率
6.70%
发文量
127
审稿时长
3 months
期刊介绍: International Archives of Occupational and Environmental Health publishes Editorials, Review Articles, Original Articles, and Letters to the Editor. It welcomes any manuscripts dealing with occupational or ambient environmental problems, with a special interest in research at the interface of occupational health and clinical medicine. The scope ranges from Biological Monitoring to Dermatology, from Fibers and Dust to Human Toxicology, from Nanomaterials and Ultra-fine Dust to Night- and Shift Work, from Psycho-mental Distress and Burnout to Vibrations. A complete list of topics can be found on the right-hand side under For authors and editors. In addition, all papers should be based on present-day standards and relate to: -Clinical and epidemiological studies on morbidity and mortality -Clinical epidemiological studies on the parameters relevant to the estimation of health risks -Human experimental studies on environmental health effects. Animal experiments are only acceptable if relevant to pathogenic aspects. -Methods for studying the topics mentioned above.
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