| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 15035 |
43.3%
|
| 2 | yes (epi programme) | 1200 |
3.5%
|
| 3 | no | 12388 |
35.7%
|
| 4 | no previous pregnancy | 6122 |
17.6%
|
| Sysmiss | 50746 |