Neurodevelopment at Age 9 Years Among Children Born at 32 to 36 Weeks' Gestation

Abstract

IMPORTANCE Although children born moderate to late preterm (MLP; 32-36 weeks' gestation) have more neurodevelopmental problems compared with children born early term or later (≥37 weeks' gestation), detailed understanding of affected domains at school age is lacking. Little is known of risk factors for poorer development. OBJECTIVE To examine whether being born MLP compared with being born early term or later is associated with neurodevelopmental outcomes at age 9 years and to describe factors associated with poorer neurodevelopment in children born MLP. DESIGN, SETTING, AND PARTICIPANTS This prospective, longitudinal cohort study recruited children born MLP and children born early term or l..