| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No flag | 1998 |
99.1%
|
| 1 | > interval | 9 |
0.4%
|
| 2 | > interval by 1 month | 9 |
0.4%
|
| 4 | During pregnancy in calendar | 0 |
0%
|
| Sysmiss | 3313 |