Table 1.
Characteristics of 200 mother-infant pairs with birth ≤34 weeks’ gestation by exposure to antenatal steroids.
| Antenatal Steroids | |||
|---|---|---|---|
| Yes (n=100) | No (n=100) | p value * | |
| Gestational age - mean ± SD | 31 ± 2.9 | 33.1 ± 2.1 | <0.001 |
| Birth weight - mean ± SD | 1663 ± 601 | 2105 ± 570 | <0.001 |
| Male gender - n (%) | 53(53) | 56(56) | 0.776 |
| Delivery type - n (%) | 0.257 | ||
| Vaginal | 58(58) | 49(49) | |
| C/section | 42(42) | 51(51) | |
| 1 minute Apgar score - median (range) | 7(1 – 9) | 7(1 – 9) | 0.725 |
| 1 minute Apgar score ≤ 3 - n (%) | 12(12) | 8(8) | 0.480 |
| Race - n (%) | 0.957 | ||
| Black | 65(65) | 63(63) | |
| White | 12(12) | 12(12) | |
| Hispanic | 17(17) | 17(17) | |
| Other | 6(6) | 8(8) | |
| Preterm delivery subtype - n (%) | 0.043 | ||
| Spontaneous | 44(44) | 38(38) | |
| PPROM | 32(32) | 22(22) | |
| Medically indicated | 24(24) | 40(40) | |
| Intrauterine infection - n (%) | |||
| Clinical diagnosis | 10(10) | 1(1) | 0.013 |
| Histopathological diagnosis | 50(50) | 17(17) | <0.0001 |
*
t test for continuous measures, Wilcoxin-Mann-Whitney test for medians, and X2 test for categorical or binary measures. Square root of gestational age used for t-test.