Pregnancy loss and role of infant HIV status on perinatal mortality among HIV-infected women

BMC Pediatrics

Table 1 Frequencies of adverse pregnancy outcomes among 1229 HIV-infected pregnant women recruited in Lusaka, Zambia

	No.	Ratio of event per 100 live-born infants
Miscarriage	36	3.1
Stillbirth	30	2.6
# of live-born infants with birth records	N = 1132	Rate ^a (95% CI)
Neonatal mortality (0–28 days)	47	0.043 (0.032–0.057)
Early mortality (0–70 days)	67	0.063 (0.050–0.079)
Birth Weight ^b		Percentage
<1500 g	15	1.3
1500–1999 g	33	2.9
2000–2499 g	113	10.1
≥2500 g	963	85.7
Mean ± SD, g	2947.7 ± 531.7
Gestation ^c
<32 weeks	94	8.4
32–33 weeks	88	7.9
34–36 weeks	260	23.3
≥37 weeks	672	60.3
Mean ± SD, weeks	37.6 ± 4.05

^a Calculated using Kaplan-Meier life table methods.
^b 8 infants are missing data on birth weight and weight at 1 week visit.
^c 18 infants are missing data on gestational weeks estimated at enrollment. Data suggested a systematic underestimation of gestation by 2–3 weeks. Thus we estimate that only 16.3% of births were preterm by conventional definitions of <37 weeks.

ISSN: 1471-2431