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Objective

The Twin Birth Study demonstrated that, in a planned vaginal birth between 32 and 38 weeks gestation in twin pregnancies where the first twin was a cephalic presentation, there was no difference in fetal and neonatal outcomes from a planned caesarean section. The aim of this secondary analysis was to identify variables that are predictors of a successful vaginal birth for both infants when a planned vaginal birth is made between 32 and 38 weeks gestation.

Study Design

A total of 1129 women were identified and included in the analysis. Of these women, 783 (69.4%) achieved a successful vaginal birth of both infants. The following variables were included in the analysis: maternal age, parity, induced labor, presentation of twin B, country’s perinatal mortality rate (PMR), gestational age at randomization, chorionicity, and epidural anesthesia. Predictor variables were entered into a multiple logistic …