Demographic characteristics and comorbidities among women with and without hypertensive disorders in pregnancy
| Characteristic | Hypertensive disorder during pregnancy, no. (%)* | p value | |
|---|---|---|---|
| No n = 213 397 | Yes n = 26 651 | ||
| Age, yr mean ± SD | 29.5 ± 4.75 | 29.6 ± 4.80 | |
| Age, yr | 0.9 | ||
| 19–24 | 28 164 (13.2) | 3 515 (13.2) | |
| 25–29 | 68 695 (32.2) | 8 580 (32.2) | |
| 30–34 | 74 148 (34.8) | 9 259 (34.7) | |
| 35–40 | 42 390 (19.9) | 5 297 (19.9) | |
| Urban status† | 213 359 | 26 648 | < 0.001 |
| Level 1 | 68 310 (32.0) | 8 412 (31.6) | |
| Level 2 | 69 253 (32.5) | 8 493 (31.9) | |
| Level 3 | 36 961 (17.3) | 4 586 (17.2) | |
| Level 4 | 25 023 (11.7) | 3 215 (12.1) | |
| Levels 5–7 | 13 812 (6.5) | 1 942 (7.3) | |
| Comorbidities at baseline | |||
| Coronary artery disease | 88 (0.04) | 11 (0.04) | 0.9 |
| Congestive heart failure | 45 (0.02) | 12 (0.05) | 0.02 |
| Hyperlipidemia | 119 (0.06) | 37 (0.14) | < 0.001 |
| Comorbidities after index pregnancy | |||
| Coronary artery disease | 148 (0.07) | 97 (0.36) | < 0.001 |
| Congestive heart failure | 131 (0.06) | 130 (0.49) | < 0.001 |
| Hypertension | 549 (0.26) | 973 (3.65) | < 0.001 |
| Preterm delivery | 14 091 (6.60) | 6 551 (24.6) | < 0.001 |
| Abruption | 1 264 (0.59) | 632 (2.37) | < 0.001 |
| Diabetes | 2 719 (1.27) | 1 181 (4.43) | < 0.001 |