| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | calendar | 80 |
24.5%
|
| 2 | body temperature | 2 |
0.6%
|
| 3 | cervical mucus | 15 |
4.6%
|
| 4 | body temp. & mucus | 1 |
0.3%
|
| 5 | no specific system | 221 |
67.6%
|
| 6 | other | 8 |
2.4%
|
| Sysmiss | 5626 |