Table I.
Maternal characteristics at study enrollment for women with delivery <37 weeks in normotensive or hypertensive pregnancies.
| Normotensive(n = 323) | Hypertensive(n = 116) | p value | |
|---|---|---|---|
| Age (years) | 20.8 ± 4.8* | 20.3 ± 3.8 | NS |
| Weight (kg) | 65.7 ± 15.4 | 69.9 ± 19.5 | 0.04 |
| BMI | 25.1 ± 5.5 | 27 ± 7.7 | 0.02 |
| SBP (mm Hg) | 105.8 ± 8.4 | 109.2 ± 8.9 | <0.001 |
| DBP (mm Hg) | 58.9 ± 7.8 | 63.2 ± 8.1 | <0.001 |
| GA at enrollment (days) | 122.4 ± 17.6 | 120.7 ± 17.8 | NS |
| Current smoker | 39 (12.1%) | 7 (6.0%) | NS |
| Previous pregnancy | 100 (31.0%) | 26 (22.4%) | NS |
| Race/ethnicity | |||
| White, non-Hispanic | 83 (25.7%) | 26 (22.4%) | |
| White, Hispanic | 50 (15.5%) | 15 (12.9%) | NS |
| Black | 184 (57.0%) | 70 (60.3%) | |
| Other, unknown | 6 (1.9%) | 5 (4.3%) | |
| Calcium treatment | 166 (51.4%) | 62 (53.5%) | NS |
*
Data are presented as mean ± SD or N (%). Hypertensive = preeclampsia or gestational hypertension; Calcium treatment = assigned to receive supplemental calcium; BMI, body-mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; GA, gestational age; NS, not significant.