American journal of obstetrics and gynecology
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Am. J. Obstet. Gynecol. · Dec 2019
Meta AnalysisThe impact of occupational shift work and working hours during pregnancy on health outcomes: a systematic review and meta-analysis.
An increasing number of original studies suggest that exposure to shift work and long working hours during pregnancy could be associated with the risk of adverse pregnancy outcomes, but the results remain conflicting and inconclusive. ⋯ Pregnant women who work rotating shifts, fixed night shifts, or longer hours have an increased risk of adverse pregnancy outcomes.