Outcome measures
blood loss, labor
BLOOD LOSS
Primary outcome was spontaneous vaginal delivery rate. Secondary outcomes include self-reported mean night sleep duration, maternal satisfaction with sleep aid and self-reported sleep quality as well as labor induction and indication, delivery blood loss, labor analgesia, mode of delivery, birthweight, umbilical cord arterial pH, Apgar scores, neonatal admission and indication. These labor and delivery outcomes were retrieved from the participants’ electronic medical record.