How to schedule night shift work in order to reduce health and safety risks

OBJECTIVES: This discussion paper aims to provide scientifically based recommendations on night shift schedules, including consecutive shifts, shift intervals and duration of shifts, which may reduce health and safety risks. Short-term physiological effects in terms of circadian disruption, inadequa...

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Main Authors: Anne Helene Garde, Luise Begtrup, Bjørn Bjorvatn, Jens Peter Bonde, Johnni Hansen, Åse Marie Hansen, Mikko Härmä, Marie Aarrebo Jensen, Göran Kecklund, Henrik A Kolstad, Ann Dyreborg Larsen, Jenny Anne Lie, Claudia RC Moreno, Kirsten Nabe-Nielsen, Mikael Sallinen
Format: Article
Language:English
Published: Nordic Association of Occupational Safety and Health (NOROSH) 2020-11-01
Series:Scandinavian Journal of Work, Environment & Health
Subjects:
Online Access: https://www.sjweh.fi/show_abstract.php?abstract_id=3920
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author Anne Helene Garde
Luise Begtrup
Bjørn Bjorvatn
Jens Peter Bonde
Johnni Hansen
Åse Marie Hansen
Mikko Härmä
Marie Aarrebo Jensen
Göran Kecklund
Henrik A Kolstad
Ann Dyreborg Larsen
Jenny Anne Lie
Claudia RC Moreno
Kirsten Nabe-Nielsen
Mikael Sallinen
author_facet Anne Helene Garde
Luise Begtrup
Bjørn Bjorvatn
Jens Peter Bonde
Johnni Hansen
Åse Marie Hansen
Mikko Härmä
Marie Aarrebo Jensen
Göran Kecklund
Henrik A Kolstad
Ann Dyreborg Larsen
Jenny Anne Lie
Claudia RC Moreno
Kirsten Nabe-Nielsen
Mikael Sallinen
author_sort Anne Helene Garde
collection DOAJ
description OBJECTIVES: This discussion paper aims to provide scientifically based recommendations on night shift schedules, including consecutive shifts, shift intervals and duration of shifts, which may reduce health and safety risks. Short-term physiological effects in terms of circadian disruption, inadequate sleep duration and quality, and fatigue were considered as possible links between night shift work and selected health and safety risks, namely, cancer, cardio-metabolic disease, injuries, and pregnancy-related outcomes. METHOD: In early 2020, 15 experienced shift work researchers participated in a workshop where they identified relevant scientific literature within their main research area. RESULTS: Knowledge gaps and possible recommendations were discussed based on the current evidence. The consensus was that schedules which reduce circadian disruption may reduce cancer risk, particularly for breast cancer, and schedules that optimize sleep and reduce fatigue may reduce the occurrence of injuries. This is generally achieved with fewer consecutive night shifts, sufficient shift intervals, and shorter night shift duration. CONCLUSIONS: Based on the limited, existing literature, we recommend that in order to reduce the risk of injuries and possibly breast cancer, night shift schedules have: (i) ≤3 consecutive night shifts; (ii) shift intervals of ≥11 hours; and (iii) ≤9 hours shift duration. In special cases – eg, oil rigs and other isolated workplaces with better possibilities to adapt to daytime sleep – additional or other recommendations may apply. Finally, to reduce risk of miscarriage, pregnant women should not work more than one night shift in a week.
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spelling doaj.art-e3901520c24348089009d821f623dc6a2022-12-21T19:57:55ZengNordic Association of Occupational Safety and Health (NOROSH)Scandinavian Journal of Work, Environment & Health0355-31401795-990X2020-11-0146655756910.5271/sjweh.39203920How to schedule night shift work in order to reduce health and safety risksAnne Helene Garde0Luise BegtrupBjørn BjorvatnJens Peter BondeJohnni HansenÅse Marie HansenMikko HärmäMarie Aarrebo JensenGöran KecklundHenrik A KolstadAnn Dyreborg LarsenJenny Anne LieClaudia RC MorenoKirsten Nabe-NielsenMikael SallinenThe National Research Centre for the Working Environment, Lerso Parkallé 105, DK-2100 Copenhagen, Denmark.OBJECTIVES: This discussion paper aims to provide scientifically based recommendations on night shift schedules, including consecutive shifts, shift intervals and duration of shifts, which may reduce health and safety risks. Short-term physiological effects in terms of circadian disruption, inadequate sleep duration and quality, and fatigue were considered as possible links between night shift work and selected health and safety risks, namely, cancer, cardio-metabolic disease, injuries, and pregnancy-related outcomes. METHOD: In early 2020, 15 experienced shift work researchers participated in a workshop where they identified relevant scientific literature within their main research area. RESULTS: Knowledge gaps and possible recommendations were discussed based on the current evidence. The consensus was that schedules which reduce circadian disruption may reduce cancer risk, particularly for breast cancer, and schedules that optimize sleep and reduce fatigue may reduce the occurrence of injuries. This is generally achieved with fewer consecutive night shifts, sufficient shift intervals, and shorter night shift duration. CONCLUSIONS: Based on the limited, existing literature, we recommend that in order to reduce the risk of injuries and possibly breast cancer, night shift schedules have: (i) ≤3 consecutive night shifts; (ii) shift intervals of ≥11 hours; and (iii) ≤9 hours shift duration. In special cases – eg, oil rigs and other isolated workplaces with better possibilities to adapt to daytime sleep – additional or other recommendations may apply. Finally, to reduce risk of miscarriage, pregnant women should not work more than one night shift in a week. https://www.sjweh.fi/show_abstract.php?abstract_id=3920 sleep durationshift work schedulenight shift workschedulepregnancycardio-metabolic diseasecancershift worksleepinessnight worksafetyshift workerinjurynight shiftrisksleep qualitycircadian disruptionhealth
spellingShingle Anne Helene Garde
Luise Begtrup
Bjørn Bjorvatn
Jens Peter Bonde
Johnni Hansen
Åse Marie Hansen
Mikko Härmä
Marie Aarrebo Jensen
Göran Kecklund
Henrik A Kolstad
Ann Dyreborg Larsen
Jenny Anne Lie
Claudia RC Moreno
Kirsten Nabe-Nielsen
Mikael Sallinen
How to schedule night shift work in order to reduce health and safety risks
Scandinavian Journal of Work, Environment & Health
sleep duration
shift work schedule
night shift work
schedule
pregnancy
cardio-metabolic disease
cancer
shift work
sleepiness
night work
safety
shift worker
injury
night shift
risk
sleep quality
circadian disruption
health
title How to schedule night shift work in order to reduce health and safety risks
title_full How to schedule night shift work in order to reduce health and safety risks
title_fullStr How to schedule night shift work in order to reduce health and safety risks
title_full_unstemmed How to schedule night shift work in order to reduce health and safety risks
title_short How to schedule night shift work in order to reduce health and safety risks
title_sort how to schedule night shift work in order to reduce health and safety risks
topic sleep duration
shift work schedule
night shift work
schedule
pregnancy
cardio-metabolic disease
cancer
shift work
sleepiness
night work
safety
shift worker
injury
night shift
risk
sleep quality
circadian disruption
health
url https://www.sjweh.fi/show_abstract.php?abstract_id=3920
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