Sex Differences in Outcome and Associations with Neonatal Brain Morphology in Extremely Preterm Children Beatrice Ski€old, MD, PhD1,2, Georgios Alexandrou, MD, PhD1, Nelly Padilla, MD, PhD1, Mats Blennow, MD, PhD2,3, Aden, MD, PhD1,2 Brigitte Vollmer, MD, PhD1,*, and Ulrika Objective To investigate sex differences in neurologic and developmental outcomes in extremely preterm (EPT) children and explore associations with neonatal brain morphology. Study design A population-based cohort of infants born at
