Table 2.
Pregnant complication before and after the comprehensive implementation of the two-child policy, n (%)
| Pregnant complications | Study group (n = 5895 cases) | Control group (n = 5013 cases) | χ2 | P |
|---|---|---|---|---|
| Hypertensive disorder complicating pregnancy | 376 (6.4) | 255 (5.0) | 9.65 | 0.00 |
| Gestational diabetes mellitus | 1490 (25.3) | 1178 (23.1) | 7.15 | 0.01 |
| Immune-related diseases | 77 (1.3) | 42 (0.8) | 5.96 | 0.02 |
| Intrahepatic cholestasis of pregnancy | 25 (0.4) | 12 (0.2) | 2.91 | 0.10 |
| Dangerous placenta previa | 175 (3.0) | 116 (2.3) | 5.14 | 0.02 |
| Placental implantation | 140 (2.4) | 90 (1.8) | 4.99 | 0.03 |
| Severe postpartum hemorrhage | 162 (2.8) | 99 (1.9) | 7.71 | 0.01 |