Exposure variables
rupture
RECRUITMENT
Data was collected on several intrapartum factors from recruitment to discharge. These included: maternal age, maternal height, maternal weight, parity, history of rupture of membranes, history of being referred from a lower health facility, history of using traditional medicines (majorly used for induction, augmentation and analegesia) in labour, birth weight, maternal blood lactate, myometrial blood lactate, and umbilical cord blood lactate. The maternal pulse, blood pressure and fetal heart rate were collected at time of recruitment/measurement of baseline lactate. Maternal and umbilical cord blood lactate levels were our main exposure variables.