Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals

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http://hdl.handle.net/10138/319389

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Vanttola , P , Puttonen , S , Karhula , K , Oksanen , T & Härmä , M 2020 , ' Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals ' , Industrial Health , vol. 58 , no. 4 , pp. 366-374 . https://doi.org/10.2486/indhealth.2019-0179

Title: Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals
Author: Vanttola, Päivi; Puttonen, Sampsa; Karhula, Kati; Oksanen, Tuula; Härmä, Mikko
Contributor: University of Helsinki, Faculty of Medicine
Date: 2020
Number of pages: 9
Belongs to series: Industrial Health
ISSN: 0019-8366
URI: http://hdl.handle.net/10138/319389
Abstract: A considerable proportion of shift workers have work schedule-related insomnia and/or excessive sleepiness, a phenomenon described as shift work disorder (SWD). There is yet a lack of evidence on whether or not employees recover from symptoms of SWD between work shifts. We studied whether SWD and its subtypes are associated with insomnia and excessive sleepiness during weekly non-work days and with 24-h sleep time. Hospital employees answered a survey on SWD, insomnia and excessive sleepiness on weekly non-work day s, and 24-h sleep. To identify shift workers with night shifts (n=2,900, 18% with SWD) and SWD, we linked survey responses to employers' register on NI orking hours. SWD included three subtypes: insomnia only (SWD-I, 4%, n=102), excessive sleepiness only (SWD-Es, 8%, n=244), and both insomnia and excessive sleepiness (SWD-IEs, 6%, n=183). Based on regression analy ses, SWD was associated with excessive sleepiness on non-work days (OR: 1.42, 95% CI: 1.07-1.88) and with insomnia on non-work days (0.53, 0.31-0.91). SWD-I was associated with excessive sleepiness on non-work days (2.25, 1.31-3.87) and with shorter sleep (7-7.5 h: 1.96, 1.06-3.63; = 8 h). The results suggest that especially employees with SWD-I may need longer time to overcome excessive sleepiness than allowed by their roster.
Subject: Circadian rhythm sleep-wake disorder
Epidemiology
Health care
Insomnia
International Classification of Sleep Disorders
Nurses
Registry
Shift work sleep disorder
HEALTH
RECOVERY
QUESTIONNAIRE
CONSEQUENCES
PATTERNS
INCREASE
NURSES
3142 Public health care science, environmental and occupational health
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