Night-shift work and its association with metabolic syndrome

Area of Science:

• Occupational Health
• Metabolic Health
• Chronobiology

Background:

• Metabolic syndrome poses a significant public health challenge.
• Night-shift work is prevalent in various industries, including manufacturing.
• Understanding the link between occupational factors and metabolic health is crucial.

Purpose of the Study:

• To investigate the association between night-shift work and metabolic syndrome indicators.
• To analyze health check data from Taiwanese semiconductor factory employees.
• To identify specific metabolic syndrome components affected by night-shift schedules.

Main Methods:

• Analysis of annual health check data from 9322 factory workers (March 2019).
• Categorization of workers into long-term night-shift and non-night-shift groups.
• Logistic regression analysis adjusted for age, sex, and body mass index.

Main Results:

• Night-shift work was associated with increased risks of abnormal blood pressure (+3.1% systolic, +1.7% diastolic) and elevated triglycerides (+5.7%).
• Night-shift workers exhibited higher body mass index and abdominal circumference, with a 3.6% increased risk of obesity/overweight.
• Logistic regression revealed a significant association between night-shift work and higher metabolic syndrome risk (OR=1.17, 95% CI 1.02-1.35).

Conclusions:

• Night-shift work is significantly associated with an increased risk of developing metabolic syndrome.
• Circadian rhythm disruption from night shifts likely contributes to metabolic dysregulation.
• Recommendations include targeted health promotion and regular screenings for night-shift workers.