Gestational Age and Risk of Mortality in Term-Born Critically Ill Neonates Admitted to PICUs in Australia and New Zealand∗

Abstract

Objectives: Gestational age at birth is declining, probably because more deliveries are being induced. Gestational age is an important modifiable risk factor for neonatal mortality and morbidity. We aimed to investigate the association between gestational age and mortality in hospital for term-born neonates (≥ 37 wk') admitted to PICUs in Australia and New Zealand. Design: Observational multicenter cohort study. Setting: PICUs in Australia and New Zealand. Patients: Term-born neonates (≥ 37 wk) admitted to PICUs. Interventions: None Measurements and Main Results: We studied 5,073 infants born with a gestational age greater than or equal to 37 weeks and were less than 28 days old when admitte..