| Singleton pregnancies | Parity | ||||
| Severe pre-eclampsia (%) | Moderate pre-eclampsia (%) | Mild pre-eclampsia (%) | Number of deliveries | Maternal age | |
| 6.1 | 4.0 | 17.4 | 16981 | All | All |
| 8.5 | 4.4 | 18.4 | 3619 | <25 | Primigravidae |
| 7.9 | 5.2 | 21.4 | 2412 | 25 - 34 | |
| 15.3 | 6.8 | 30.9 | 249 | >35 | |
| 3.5 | 2.0 | 12.4 | 2288 | <25 | Multi-gravidae |
| 3.7 | 3.7 | 15.9 | 6459 | 25 - 24 | |
| 6.5 | 4.7 | 19.4 | 1954 | >35 | |