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Intraindividual association between shift work and risk of drinking problems: data from the Finnish Public Sector
Wan-Ju Cheng1,2,3, Mikko Härmä4, Aki Koskinen4
1Department of Psychiatry, China Medical University Hospital, Taichung, Taiwan.
Occupational and Environmental Medicine
|January 23, 2021
Summary
Night shift work is linked to higher-risk, intense drinking episodes but not necessarily higher average alcohol consumption. This study clarifies complex associations between shift schedules and drinking behaviors in occupational settings.
Area of Science:
- Occupational Health
- Epidemiology
- Behavioral Science
Background:
- Inconsistent findings exist regarding shift work and alcohol problems.
- Large-scale occupational cohorts are crucial for understanding these associations.
Purpose of the Study:
- To investigate the relationship between various shift work schedules and different drinking behaviors.
- To differentiate between at-risk drinking and high-intensity drinking in shift workers.
Main Methods:
- Utilized data from the Finnish Public Sector Study (93,121 non-abstinent workers).
- Collected six waves of survey data between 2000 and 2017.
- Employed fixed-effects regression for intraindividual analysis of shift work and drinking patterns.
Main Results:
- Night shift work correlated with increased high-intensity drinking (OR 1.28) but decreased at-risk drinking (OR 0.85).
- Long shift durations were associated with a lower risk of at-risk drinking (OR 0.58).
Conclusions:
- Shift work's impact on alcohol use is pattern-dependent.
- Night shift workers reported more high-intensity drinking but not higher average volumes compared to day workers.
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