Effect of parity on maternal and neonatal outcomes in twin gestations

Objective. To compare maternal and neonatal outcomes of twin gestations in nulliparous and multiparous women. Design. Retrospective analysis of maternal and neonatal records. Setting. American University of Beirut Medical Center, a referral university‐affiliated hospital. Population. Pregnant women who delivered twin gestations beyond 24 weeks from 1990 to 2004. Methods. The data collected were analyzed using Student's paired t‐test or χ2test. Logistic regression analysis was used to study the effect of multiple variables on preterm delivery. Main Outcome Measure. Preterm birth rate. Results. Nulliparas (n=333) were more likely to be younger (28.1±5.4 vs. 30.0±5.2years; p