TABLE II.
Maternal and Fetal Demographics
| Uninfected mothers (n = 55) | HIV-1 infected mothers (n = 53) | |
|---|---|---|
| Maternal factors | ||
| Ethnicity/Race | ||
| American Indian | 0 | 1 |
| Black, not Hispanic | 9 | 15 |
| Hispanic/Latino | 23 | 29 |
| White (not Hispanic) | 19 | 5 |
| Not known | 4 | 3 |
| Age at delivery (years; mean ± SD) | 27.2 ± 1.1 | 28.3 ± 0.7 |
| Plasma HIV-1 RNA (log10 copies/ml; range) | Not tested | 50–172,000a |
| CD4 cell count (×106 cells/l; range) | Not tested | 15–850a |
| CD4 cell % (range) | Not tested | 1–48a |
| Fetal factors | ||
| Gender | ||
| Female | 30 | 26 |
| Male | 25 | 27 |
| Birth weight (g; mean ± SD) | 3265.8 ± 74.5 | 3098.6 ± 84.1 |
| Gestational age at delivery (weeks; mean ± SD) | 39.1 ± 0.3 | 38.0 ± 0.2 |
| HIV-1 status | Not tested | Negative for 52/53 infantsb |
a
Values represent the range across HIV-1 infected mothers.
b
For all 52 infants included in the analyses, at least two negative HIV-1 PCR tests were obtained on separate occasions after the age of 1 month.