Table 1.

Definitions of the primary outcomes

Variable	Definition	Variable categorization
Low birth weight	Birth weight < 2500 g	Yes = 1 and No = 0
Poor Apgar score	Apgar score < 7	Yes = 1 and No = 0
Perinatal mortality	Stillbirth (infant death in utero at or during the intrapartum period [≥ 28 weeks of gestation]) and early neonatal death (within the first week of birth)	Yes = 1 and No = 0
Preterm birth	Birth before 37 completed weeks of gestation but after 28 weeks of gestation	Yes = 1 and No = 0
Neonatal ICU admission	Admission of the infant for reanimation	Yes = 1 and No = 0
Cesarean delivery	Delivery of a baby via a surgical incision on the mother's abdomen and uterus	Yes = 1 and No = 0
Miscarriage/abortion	Pregnancy loss at < 20 weeks of gestation	Yes = 1 and No = 0
Adverse perinatal outcome (composite variable)	Presence of at least one adverse event	Yes = 1 and No = 0

ICU intensive care unit