Table 1.
Maternal characteristics (N = 1,423,099).
| OSA | No OSA | p-value for t-test or Chi square | |
|---|---|---|---|
| N = 1739 | N = 1,421,360 | ||
| N (%) or mean (SD) | N (%) or mean (SD) | ||
| Age (years) | 32.5 (6.0) | 29.7 (5.9) | <0.001 |
| Race | <0.001 | ||
| Asian | 30 (1.7) | 65,619 (4.6) | |
| Black | 569 (32.7) | 254,911 (17.9) | |
| Native Hawaiian | 6 (0.4) | 7660 (0.5) | |
| Hispanic | 72 (4.1) | 95,073 (6.7) | |
| American Indian | 7 (0.4) | 5170 (0.4) | |
| Unknown | 318 (18.3) | 338,687 (23.8) | |
| White | 737 (42.4) | 654,240 (46.0) | |
| Obesity | 1041 (59.9) | 84,073 (5.9) | <0.001 |
| Pre-gestational HTN | 498 (28.6) | 39,945 (2.8) | <0.001 |
| Pre-gestational DM | 226 (13.0) | 16,914 (1.2) | <0.001 |
| Gestational HTN | 168 (9.7) | 64,877 (4.6) | <0.001 |
| Preeclampsia | 239 (13.7) | 66,834 (4.7) | <0.001 |
| Gestational DM | 337 (19.4) | 101,421 (7.1) | <0.001 |
| Multiple gestations | 133 (7.7) | 62,938 (4.4) | <0.001 |
| Tobacco use | 156 (9.0) | 50,996 (3.6) | <0.001 |
| Alcohol use | 1 (0.1) | 1517 (0.1) | 0.530 |
| Illicit drug use | 40 (2.3) | 19,149 (1.4) | <0.001 |
OSA: obstructive sleep apnea; HTN: hypertension; DM: diabetes mellitus; SD: standard deviation.