Outcomes
Adverse neonatal outcomes were stratified into neonatal infection and
asphyxia-related conditions, defined by registered ICD-10 diagnoses in
the Swedish Pregnancy Register. Neonatal infection included necrotizing
enterocolitis, congenital pneumonia, sepsis, urinary tract infection,
skin infection, umbilical infection and unspecified infections during
the neonatal period. Asphyxia-related conditions included meconium
aspiration, hypoxic ischemic encephalopathy, convulsions/seizures,
hypoglycemia, jaundice and respiratory distress syndrome (RDS).
(ICD-codes are available in Supportive information eTable 4).