...The excess risk of neurodevelopmental impairment associated with male sex was higher among preeclamptic than normotensive pregnancies (p for interaction=0.004), among infants who were either small for gestational age or delivered to a mother with preeclampsia (p for interaction=0.001) and in iatrogenic as opposed to spontaneous preterm birth or preterm premature rupture of membranes (p for interaction=0.035). Interpretation: The excess risk of neurodevelopmental impairment associated with male sex among preterm infants is modulated by obstetric risk factors...
So it's not being premature per se that's most strongly associated with abnormal neurological development. It's being a boy who was delivered for preeclampsia as the result of an induction or Caesarean. We should expect to see more boys with neurodevelopmental impairment (haven't pulled the full-text, so I'm not sure how that's classed) in our population than in the average population.
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