Fetal sex pairing and adverse perinatal outcomes in twin gestations.

  title={Fetal sex pairing and adverse perinatal outcomes in twin gestations.},
  author={Zuber D. Mulla and Sanja Kupesic Plavsic and Melchor Ortiz and Bahij S Nuwayhid and Cande V Ananth},
  journal={Annals of epidemiology},
  volume={23 1},
PURPOSE To assess the association between fetal sex pairing in twin pregnancies and adverse perinatal and infant outcomes. METHODS A retrospective cohort study of 9770 infants from 4885 twin pregnancies delivered in 2007 was conducted with a statewide hospital discharge database for Texas. Log-binomial regression models based on generalized estimating equations were used to calculate relative risks (RR) and 95% confidence intervals (95% CI) for the following dichotomous outcomes: breech… CONTINUE READING