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Cardiometabolic function in retired night shift workers and retired day workers
Brian N Chin1,2, H Matthew Lehrer1, Eunjin Lee Tracy1
1Department of Psychiatry, University of Pittsburgh, Western Psychiatric Hospital, 3811 O'Hara Street, Pittsburgh, PA, 15213, USA.
Scientific Reports
|March 30, 2023
Summary
Retired night shift workers showed mixed cardiometabolic outcomes compared to day workers. Some sex-specific differences in metabolic syndrome and high body mass index were observed post-retirement.
Area of Science:
- Cardiovascular Health
- Occupational Health
- Metabolic Health
Background:
- Night shift work is linked to adverse cardiometabolic health outcomes.
- Understanding these effects post-retirement is crucial for risk stratification.
- Limited data exists on cardiometabolic function in retired night shift workers (RNSW).
Purpose of the Study:
- To compare cardiometabolic function between retired night shift workers (RNSW) and retired day workers (RDW).
- To identify potential sex-specific differences in cardiometabolic dysfunction among retirees.
- To inform targeted interventions for RNSW.
Main Methods:
- Observational study comparing RNSW (n=71) and RDW (n=83).
- Multimodal assessment including metabolic syndrome prevalence, brachial artery flow-mediated dilation, and carotid intima-media thickness.
- Sex-stratified analyses were conducted.
Main Results:
- Unadjusted analyses showed higher odds of metabolic syndrome in RNSW, but this was not significant after adjustment.
- No significant differences were found in flow-mediated dilation or carotid intima-media thickness between groups.
- Sex-stratified analyses revealed higher odds of high body mass index in women RNSW and high triglycerides in men RNSW.
Conclusions:
- Evidence suggests potential sex-specific cardiometabolic dysfunction in retired night shift workers.
- Further research is needed to fully understand the long-term impact of night shift work on retired populations.
- Findings may aid in developing tailored health strategies for RNSW.

