Table 1.

Summary of data elements in the Pregnancy Exposure Registry

Variables collected	Calculated parameters	MOU aggregate statistics
Antenatal Maternal date of birth Date of first antenatal visit Last menstrual period Parity, gravidity Obstetric and medical history Chronic medication Height, mid-upper arm circumference, weight, blood pressure, urinalysis Symphysis fundal height Alcohol, tobacco, drug use Number of antenatal visits	Gestational age at first antenatal visit	Number of first visits  Number of women first ANC<20 weeks  Number age <20 years or >38 years  Number grand multipara (≥5 deliveries)  Number high blood pressure/proteinuria
Vertical transmission of HIV HIV status at first antenatal visit Subsequent positive HIV test HIV treatment incl. regimen switches CD4 count Viral load HIV-exposed infant HIV-PCR	Number of women at high risk of vertical HIVtransmission  ART in hand at estimated time of conception  ART in hand at delivery	Number of women living with HIV: Before pregnancy During pregnancy Number of women on ART (first and second line): Before, during pregnancy Viral load unsuppressed at pregnancy and delivery Number of infant birth HIV-PCR
Ultrasound Gestational age Abnormalities Expected date of delivery		Number of ultrasounds conducted  Number multiple pregnancies
Maternal outcome Facility-based death	Vital status	Maternal death
Peripartum Date and site of outcome Method of delivery Gestational age at outcome	Prematurity (<37 completed weeks gestation)	Number of deliveries
Pregnancy outcome Live birth Stillbirth Miscarriage Termination of pregnancy Ectopic pregnancy Molar pregnancy	Gestational age at pregnancy outcome	Number of livebirths, stillbirths, miscarriages
Neonate Date of birth Sex, APGAR scores Gestational age Birth weight, length, head circumference, foot length Neonatal surface examination Abnormalities noted	Gestational age at birth  Low birth weight (<2500 g)  Prematurity (<37 completed weeks gestation)  Neonatal death	Number of low birth weight infants  Number premature infants  Number neonatal deaths  Perinatal mortality rate

ANC, antenatal care; ART, antiretroviral therapy; MOU, midwife obstetric unit.