| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Not pretreated | 0 |
0%
|
| 1 | Pretreated, permanent treatment | 341 |
89%
|
| 2 | Pretreated, requiring future treatment | 1 |
0.3%
|
| 3 | Not pretreated, came with kit and treated at home | 0 |
0%
|
| 4 | Pretreated, treatment type not known | 0 |
0%
|
| 6 | Other | 18 |
4.7%
|
| 8 | Don't know | 16 |
4.2%
|
| 9 | 7 |
1.8%
|
|
| Sysmiss | 14041 |