| Value | Category | Cases | |
|---|---|---|---|
| 1 | Hours after delivery | 2539 |
65.8%
|
| 2 | Days after delivery | 615 |
15.9%
|
| 3 | Weeks after delivery | 677 |
17.5%
|
| 9 | Special answers | 29 |
0.8%
|
| Sysmiss | 6510 |