Table 1.
Demographic characteristics of mothers with normotensive and preeclamptic pregnancies: n (weighted %) and p-value for weighted Chi square test of independence.
| Characteristic | Normotensive pregnancy (n=391, 92%) |
Preeclamptic pregnancy (n=50, 8%) |
p-value for independence |
|
|---|---|---|---|---|
| Age category | <25 years | 48 (13%) | 4 (11%) | |
| 25-<30 years | 72 (19%) | 13 (26%) | 0.74 | |
| 30-<35 years | 151 (38%) | 19 (35%) | ||
| ≥35 years | 120 (30%) | 14 (27%) | ||
| Race/ethnicity | White | 229 (59%) | 31 (65%) | |
| African American | 57 (15%) | 12 (23%) | 0.13 | |
| Other | 105 (26%) | 7 (13%) | ||
| Health insurance | Private | 214 (82%) | 40 (83%) | 0.88 |
| Public | 68 (18%) | 9 (17%) | ||
| Education | High school/technical | 113 (29%) | 19 (33%) | |
| Junior or some college | 106 (28%) | 18 (34%) | 0.45 | |
| College degree+ | 163 (43%) | 13 (32%) | ||
| Body mass index | < 25 kg/m2 | 218 (56%) | 13 (28%) | |
| 25–30 kg/m2 | 107 (28%) | 12 (25%) | <0.01 | |
| >30 kg/m2 | 63 (16%) | 25 (47%) | ||
| Tobacco use in pregnancy | No | 370 (94%) | 45 (94%) | 0.88 |
| Yes | 21 (6%) | 5 (6%) | ||
| Alcohol use in pregnancy | No | 363 (94%) | 49 (97%) | 0.55 |
| Yes | 19 (6%) | 1 (3%) | ||
| Parity | Nulliparous | 169 (44%) | 26 (52%) | 0.35 |
| Parous | 222 (56%) | 24 (48%) | ||
| Use of ART | No | 360 (92%) | 41 (79%) | <0.01 |
| Yes | 31 (8%) | 9 (21%) | ||
| Preterm birth | No | 301 (90%) | 19 (62%) | <0.01 |
| Yes | 90 (10%) | 31 (38%) | ||
| Fetal sex | Male | 170 (44%) | 31 (69%) | <0.01 |
| Female | 221 (55%) | 19 (31%) |