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Cerebral palsy and perinatal mortality after pregnancy‐induced hypertension across the gestational age spectrum: observations of a reconstructed total population cohort

Pregnancy‐induced hypertension/pre‐eclampsia (PIH/PE) is associated with cerebral palsy (CP) in term births but if sufficiently severe to necessitate preterm delivery predicts a lower risk of CP than observed in gestational peers. We investigated whether this apparent ‘protection’ was attributable to inappropriately chosen comparison groups and/or an increased risk of perinatal death.