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Advanced maternal age tied to higher odds of preterm birth

Mothers older than 40 had a 14% increased likelihood of having spontaneous preterm delivery and a 31% higher risk of early deliveries due to cesarean births, labor induction and other interventions, compared with those ages 30 to 34, Canadian researchers reported in PLOS ONE. The findings also showed increased odds of prematurity risk factors, such as gestational diabetes, hypertension, obesity and placenta previa, among those over 40.

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