TABLE 1.
Characteristics of European- and African-Descent Disease-Based Groups (N = 513)
| Characteristic | European Descent | P Value | African Descent | P Value | ||
|---|---|---|---|---|---|---|
| RDS (n = 112) | Non-RDS (n = 161) | RDS (n = 44) | Non-RDS (n = 196) | |||
| Gendera | .51 | <.001 | ||||
| Female | 47 (0.42) | 74 (0.46) | 10 (0.23) | 101 (0.52) | ||
| Male | 65 (0.58) | 87 (0.54) | 34 (0.77) | 95 (0.48) | ||
| Gestational age, mean ± SD, wk | 37.0 ± 1.7 | 38.2 ± 1.6 | <.001 | 37.6 ± 2.7 | 38.9 ± 1.7 | .003 |
| Birth weight, mean ± SD, kg | 3.1 ± 0.6 | 3.1 ± 0.7 | .37 | 2.9 ± 1.0 | 3.1 ± 0.4 | .08 |
| Route of deliverya | .54 | <.001 | ||||
| Vaginal | 55 (0.49) | 73 (0.45) | 15 (0.34) | 133 (0.68) | ||
| Cesarean | 57 (0.51) | 88 (0.55) | 29 (0.66) | 63 (0.32) | ||
a
Number of infants (percent).