Does maintaining or changing shift types affect BMI? A longitudinal study

Isabella Zhao, Fiona Bogossian, Catherine Turner

Research output: Contribution to journalArticleResearchpeer-review

24 Citations (Scopus)


OBJECTIVES: To examine the impact of maintaining or changing shift work status on body mass index (BMI) among female nurses and midwives. METHODS: A longitudinal study. Measurements included day work maintainers, shift work maintainers, day to shift changers and shift to day changers, changes in BMI, and potential confounders selected from baseline survey. Repeated measures analysis of covariance was employed. RESULTS: The shift to day changers had decreased in BMI over the follow-up period (mean, -3.02; SD, 5.45; P < 0.001). In contrast, the shift work maintainers and the day to shift changers had increased in BMI over follow-up period (mean, 0.56; SD, 5.47; P = 0.01 and mean, 0.13; SD, 5.64; P = 0.04, respectively). CONCLUSIONS: The analysis suggests that shift work could increase BMI.

Original languageEnglish
Pages (from-to)525-531
Number of pages7
JournalJournal of Occupational and Environmental Medicine
Issue number5
Publication statusPublished - May 2012
Externally publishedYes

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