| Value | Category | Cases | |
|---|---|---|---|
| 0 | No flag | 13157 |
97.8%
|
| 1 | > interval | 134 |
1%
|
| 2 | > interval by 1 month | 44 |
0.3%
|
| 4 | During pregnancy in calendar | 122 |
0.9%
|
| Sysmiss | 35750 |