| Value | Category | Cases | |
|---|---|---|---|
| 1 | based on calendar | 111 |
84.1%
|
| 2 | based on body temperature | 3 |
2.3%
|
| 3 | based on cervical mucous | 4 |
3%
|
| 4 | based on body temperature and cervical mucous | 4 |
3%
|
| 5 | no specific system | 7 |
5.3%
|
| 6 | other | 3 |
2.3%
|
| Sysmiss | 11627 |