Table 1.
Baseline Characteristics of Women With Completed Pregnancies According to Hypertensive Status
|
Normotensive Control Participants (n=483 562) |
HDP (n=63 216) |
Chronic Hypertension (n=19 281) |
|
|---|---|---|---|
| Demographics | |||
| Age, mean (SD), y | 31.2 (5.3) | 31.2 (5.7)*, * | 32.5 (5.5) |
| Age <30 y | 170 582 (35) | 23 572 (37) | 5568 (29) |
| Race/ethnicity | |||
| White | 313 392 (65) | 43 065 (68) | 11 942 (62) |
| Black | 38 844 (8) | 7172 (11) | 2888 (15) |
| Hispanic | 61 792 (13) | 7074 (11) | 2445 (13) |
| Other | 69 534 (14) | 5905 (9.3) | 2006 (10) |
| HS graduate or less | 100 299 (21) | 16 109 (26) | 5349 (28) |
| Geographic region | |||
| Midwest | 127 674 (26) | 16 365 (26) | 4332 (23) |
| Northeast | 50 000 (10) | 5756 (9.1) | 2444 (13) |
| South | 203 041 (42) | 30 692 (49) | 9670 (50) |
| West | 101 813 (21) | 10 339 (16) | 2810 (15) |
| Obstetrics history | |||
| Cesarean delivery | 155 692 (32) | 31 298 (50) | 8813 (46) |
| Preterm delivery | 93 717 (19) | 19 930 (32) | 4906 (25) |
| Multiple gestations | 10 421 (2.2) | 3563 (5.6) | 570 (3.0) |
| Gestational diabetes mellitus | 62 961 (13) | 11 884 (19) | 3541 (18) |
| Medical comorbidities | |||
| Diabetes mellitus | 15 906 (3.3) | 5451 (8.6) | 2568 (13) |
| Lipid disorder | 15 149 (3.1) | 3898 (6.2) | 3083 (16) |
| Coronary artery disease | 966 (0.2) | 267 (0.4) | 305 (1.6) |
| Kidney disease | 513 (0.1) | 419 (0.7) | 218 (1.1) |
| Heart failure | 424 (0.1) | 249 (0.4) | 156 (0.8) |
| Healthcare utilization | |||
| Prior ED visit † , † | 0.4 (0.9) | 0.6 (1.2) | 0.7 (1.4) |
| Prior BP medication use‡ | 4668 (1) | 5742 (9.1) | 4550 (24) |
All values represent number (percentage) except as indicated. All comparisons of HDP and control participants and chronic hypertension and control participants are significant at P<0.0001, except as indicated. BP indicates blood pressure; ED, emergency department; HDP, hypertensive disorders of pregnancy; and HS, high school.
*
P>0.05.
†
Before delivery.
‡
Before pregnancy.