| HIV status group |  | ||
---|---|---|---|---|
 | Nn (n = 136) | Pn (n = 324) | Pp (n = 99) | P-value* |
Maternal characteristics | Â | Â | Â | Â |
   Hemoglobin, g/L†, ‡ | 122 (17)a | 113 (18)b | 110 (19)b | <0.001 |
>110, % | 78.8 | 60.6 | 53.2 | Â |
90–110, % | 18.9 | 29.8 | 35.1 |  |
<90, % | 2.2 | 9.6 | 11.7 | <0.001 |
   CD4+ lymphocyte count, cells/μL |  |  |  |  |
≥400 | ------- | 40.7 | 34.3 |  |
200–400 |  | 33.6 | 29.2 |  |
<200 | Â | 12.3 | 26.2 | <0.01 |
   Age, y | 23 (5)a | 26 (5)b | 25 (5)b | <0.0001 |
   Parity | 1.9 (1.2)a | 2.4 (1.3)b | 2.3 (1.3)b | <0.001 |
Infant characteristics | Â | Â | Â | Â |
   Sex, % female | 48.5 | 47.5 | 50.5 | 0.87 |
   Birthweight, g | 2917 (454)a | 2969 (464)a | 2830 (462)b | 0.030 |
<2500 g, % | 19.2 | 14.9 | 24.2 | 0.089 |
   Gestational age, wk | 39.0 (1.4) | 39.1 (1.4) | 39.0 (1.6) | 0.46 |
<38 wk gestation, % | 18.4 | 17.9 | 21.9 | 0.68 |
   Length, cm | 48.7 (2.7)a | 49.0 (2.7)a | 48.1 (2.9)b | 0.022 |
   Head circumference, cm | 34.3 (1.6) | 34.2 (1.5) | 33.8 (1.8) | 0.079 |