Gestational age, morbidity and mortality among twin births in New South Wales, Australia 2003-2014: A cohort study.

Background: Evidence suggests that the trend toward early planned births observed among singletons may be evident among twin pregnancies.

Aims: To describe trends in gestational age at birth, pregnancy characteristics, neonatal morbidity and mortality among twin pregnancies.

Materials And Methods: Population-based data linkage study of twin births of ≥30 weeks of gestation without a major congenital anomaly born in 2003-2014 in New South Wales (NSW), Australia.