Table 1.
Baseline maternal characteristics stratified by race and ethnicity
| Non-Hispanic White (N = 4,491) | Non-Hispanic Black (N = 2,804) | Hispanic (N = 2,317) | P value | |
|---|---|---|---|---|
| Maternal age (y) | 29.1 ± 6.2 | 25.8 ± 6.7 | 27.1 ± 6.9 | < 0.001 |
| Body mass index (kg/m2) | 34.1 ± 7.1 | 36.1 ± 8.8 | 34.0 ± 6.7 | < 0.001 |
| Private insurance | 3,106 (69.6) | 676 (24.2) | 351 (15.4) | < 0.001 |
| Multiparous | 1,657 (36.9) | 1,367 (48.8) | 1,200 (51.8) | < 0.001 |
| > 2 prenatal visits | 4,219 (98.6) | 2,532 (94.7) | 2,191 (97.8) | < 0.001 |
| Maternal diabetes | ||||
| Pre-gestational | 168 (3.7) | 139 (5.0) | 88 (3.8) | < 0.001 |
| Gestational | 374 (8.3) | 228 (8.1) | 255 (11.0) | |
| Tobacco use | 682 (15.2) | 431 (15.4) | 70 (3.0) | < 0.001 |
| Singleton pregnancy | 4,166 (92.8) | 2,702 (96.4) | 2,248 (97.0) | < 0.001 |
| Gestational age at delivery (wks) | 36.9 ± 3.0 | 36.5 ± 3.5 | 37.3 ± 2.9 | < 0.001 |
| Chronic hypertension | 490 (10.9) | 586 (20.9) | 222 (9.6) | <0.001 |
| Hypertensive disorder of pregnancy | ||||
| Gestational hypertension | 1,759 (39.2) | 832 (29.7) | 651 (28.1) | |
| Preeclampsia (mild, severe, uncategorized, and superimposed) | 2,567 (57.2) | 1,915 (68.3) | 1,601 (69.1) | < 0.001 |
| Eclampsia or HELLP | 165 (3.7) | 57 (2.0) | 65 (2.8) |
All data presented as mean ± SD or n (%)
p-values from Chi-squared or Wilcoxon test
N=69 missing insurance, 414 missing prenatal visits, 6 missing diabetes, 12 missing tobacco use, 5 missing chronic hypertensive status, 193 missing BMI
HELLP=hemolysis, elevated liver enzymes, low platelet count