Journal
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE
Volume 54, Issue 7, Pages 834-840Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/JOM.0b013e31824e1058
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Funding
- Australian Research Council [LP0562102, SR0566924]
- Australian National Health and Medical Research Council [2005002108]
- New Zealand Health Research Council [456163]
- Queensland Health
- South Australian Department of Health, Injury Prevention and Control Australia (Pty Ltd)
- Nursing Council of New Zealand
- Macquarie Bank Foundation
- Virgin Blue
- Virgin Atlantic
- MessageNet
- Australian Research Council [SR0566924] Funding Source: Australian Research Council
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Objective: To examine the associations between shift work types and overweight/obesity among female nurses and midwives. Methods: A cross-sectional study. Measurement included exposure variables: rotating shift work and night-only shift work; outcome variables: overweight and obesity; and potential confounding and associated variables: modifiable lifestyle factors, general health status, menopausal status, and work pattern. Results: Among the 2086 participants, almost 60% were overweight/obese (31.7% overweight; 27.1% obese). After we adjusted the selected confounders, we found that rotating shift workers were 1.02 times more likely to be overweight/obese than day workers (P = 0.007; 95% confidence interval [95% Cl], 1.004 to 1.03; and P = 0.02; 95% CI: 1.004 to 1.04, respectively). Night-only shift work was found to be significantly associated with obesity only (P = 0.031; relative risk, 1.02; 95% CI, 1.002 to 1.04). Conclusions: Rotating shift work was associated with both overweight and obesity; and night-only shift work was associated with obesity, not overweight.
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