Importance Prior studies using large registries have suggested a modest increase in risk for
neurodevelopmental diagnoses among children of mothers with immune activation during
pregnancy, and such risk may be sex-specific. Objective To determine whether in utero
exposure to SARS-CoV-2 is associated with sex-specific risk for neurodevelopmental
disorders up to 18 months after birth, compared with unexposed offspring born during or
prior to the COVID-19 pandemic period. Design, Setting, and Participants This retrospective …