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Age at Menarche and Risk of Gestational Diabetes Mellitus: A Prospective Cohort Study Among 27,482 Women.
Published Web Locationhttps://doi.org/10.2337/dc15-2011
ObjectiveTo examine the association between age at menarche and risk of gestational diabetes mellitus (GDM).
Research design and methodsA prospective cohort study of 42,109 eligible pregnancies from 27,482 women in the Nurses' Health Study II.
ResultsThe adjusted risk ratios for GDM across the age at menarche categories (≤11, 12, 13, and ≥14 years) were 1.34 (95% CI 1.14-1.58), 1.13 (0.97-1.31), 1.11 (0.95-1.29), and 1.00 (referent; P for trend = 0.0005), respectively. Analysis of the mediating effect indicated that 42.1% (P = 0.0007) of the association was mediated through prepregnancy BMI.
ConclusionsThese findings suggested that earlier menarche was significantly associated with an increased risk of GDM. This association was largely mediated through prepregnancy excessive body adiposity.
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