Table 1.
Subject Characteristics
| Variable | Nulligravid | Prior Uncomplicated Pregnancy | Prior Preeclampsia |
|---|---|---|---|
| n | 8 | 16 | 15 |
| Age, y | 25 ± 4 | 26 ± 6 | 29 ± 4 |
| Race, n (%) | |||
| White | 7 (88) | 11 (69) | 10 (67) |
| Black | 0 (0) | 4 (25) | 5 (33) |
| Asian | 1 (12) | 1 (6) | 0 (0) |
| Body mass index, kg/m2 | 21.5 (20.8–22.5) | 27.3 (23.1–31.0)b | 30.0 (24.0–35.2)b |
| Resting heart rate, beats/min | 64 (60–67) | 78 (68–84)b | 72 (68–84)b |
| Hormonal contraceptive use, n (%)a | 2 (29) | 10 (66) | 7 (50) |
| Menstrual cycle phase, n (%) | |||
| Follicular | 0 (0) | 3 (19) | 5 (33) |
| Luteal | 6 (75) | 8 (50) | 7 (47) |
| Cycle >35 d | 1 (13) | 4 (25) | 1 (7) |
| Not known | 1 (12) | 1 (6) | 2 (13) |
| Blood pressure, mm Hg | |||
| Systolic | 109 ± 8 | 109 ± 8 | 119 ± 10b,c |
| Diastolic | 68 ± 9 | 73 ± 9 | 81 ± 10b,c |
| Parity, n (%) | |||
| Nulliparous | 8 (100%) | 0 | 0 |
| Primiparous | 0 | 12 (100%) | 13 (87%) |
| Multiparous | 0 | 0 | 2 (13%) |
| Significance | b | b | |
| Days after delivery | NA | 388 ± 151 | 389 ± 114 |
Abbreviation: NA, not applicable. Values are expressed as mean ± SD or median (interquartile range) unless otherwise indicated.
a
Data were missing for one woman in each group.
b,c
Significant difference (P < .05) from: b nulligravid women; c prior uncomplicated pregnancy.