| HD (n = 508) | No HD (n = 44,559) | P Value | VHD (n = 66) | CM (n = 84) | ACHD (n = 207) | PH (n = 7) | Other (n = 144) | P value |
---|---|---|---|---|---|---|---|---|---|
Age (years) | 30.5 ± 5.3 | 31.1 ± 5.3 | 0.013a | 32.0 (28.0, 37.0) | 30.5 (27.0, 34.8) | 30.0 (27.0, 33.0) | 28.0 (26.0, 32.0) | 29.0 (26.3, 32.0) | 0.010b |
Age group (years) | |||||||||
 18–25 | 81 (15.9) | 6169 (13.8) | 0.333 | 5 (7.6) | 17 (20.2) | 31 (15.0) | 1 (14.3) | 27 (18.8) | 0.036 |
 26–35 | 334 (65.7) | 29,549 (66.3) |  | 40 (60.6) | 49 (58.3) | 144 (69.6) | 6 (85.7) | 95 (66.0) |  |
  > 35 | 93 (18.3) | 8841 (19.8) |  | 21 (31.8) | 18 (21.4) | 32 (15.5) | 0 (0.0) | 22 (26.4) |  |
Ethnic Han, n | 499 (98.1) | 44,203 (99.2) | 0.018 | 65 (98.2) | 84 (100.0) | 201 (97.1) | 7 (100.0) | 142 (98.3) | 0.674 |
Insurance status | |||||||||
 Self-supporting (%) | 49.6 | 42.5 | <  0.0001 | 50.0 | 47.6 | 55.1 | 28.6 | 43.8 | 0.004 |
 Working (%) | 11.6 | 19.2 |  | 4.5 | 4.8 | 9.7 | 14.3 | 21.5 |  |
 Residents (%) | 18.5 | 18.3 |  | 19.7 | 20.2 | 17.9 | 42.9 | 16.7 |  |
 Other (%) | 20.3 | 20.0 |  | 25.8 | 27.4 | 17.4 | 14.3 | 18.1 |  |
 Smoking (%) | 1.8 | 0.7 | 0.094 | 0.0 | 2.3 | 3.3 | 0.0 | 0.0 | 0.464 |
 Drinking (%) | 1.4 | 0.5 | 0.107 | 0.0 | 2.3 | 1.6 | 0.0 | 1.6 | 0.908 |
 BMI (kg/m2) | 26.4 ± 3.9 | 26.7 ± 5.3 | 0.596a | 26.2 ± 2.6 | 27.9 ± 8.0 | 25.9 ± 3.1 | . | 26.9 ± 2.8 | 0.368b |
 Obesity (%) | 2.8 | 4.7 | 0.348 | 0.0 | 16.7 | 1.8 | . | 0.0 | 0.091 |
 Hypertension known before pregnancy or present in the first 20 weeks | 3 (0.6) | 159 (0.4) | <  0.0001 | 1 (1.5) | 0 (0.0) | 2 (1.0) | 0 (0.0) | 0 (0.0) | 0.582 |
 Hypertension arising de novo at or after 20 weeks | 29 (2.5) | 1110 (5.7) | <  0.0001 | 4 (6.1) | 10 (11.9) | 9 (4.3) | 1 (14.3) | 5 (3.5) | 0.061 |
 Diabetes mellitus | 40 (7.9) | 6576 (14.8) | <  0.0001 | 5 (7.6) | 8 (9.5) | 14 (6.8) | 0 (0.0) | 13 (9.0) | 0.820 |
Delivery type | |||||||||
 Cesarean delivery (%) | 74.3 | 39.3 | <  0.0001 | 78.8 | 88.2 | 74.1 | 83.3 | 64.7 | 0.119 |
 Vaginal or assisted delivery (%) | 25.7 | 60.7 |  | 21.2 | 11.8 | 25.9 | 16.7 | 35.3 |  |