• Maternal body mass index and the prevalence of spontaneous and elective preterm deliveries in an Irish obstetric population: a retrospective cohort study.

      Vinturache, Angela; McKeating, Aoife; Daly, Niamh; Sheehan, Sharon; Turner, Michael; Centre for Human Reproduction, University College Dublin, Coombe Women and Infants University Hospital, Dublin, Ireland (BMJ, 2017-10-15)
      To estimate the association between maternal body mass index (BMI) and risk of spontaneous preterm delivery (sPTD) and elective preterm delivery (ePTD) in singleton and multiple pregnancies. Retrospective cohort study. Electronic records of all deliveries from 2009 through 2013 in a tertiary university hospital were abstracted for demographic and obstetrical information. A total of 38 528 deliveries were included. Participants with missing data were excluded from the study. BMI was calculated from the measurement of height and weight at the first prenatal visit and categorised. Sonographic confirmation of gestational age was standard.