| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Not pretreated | 0 |
0%
|
| 1 | Pretreated, permanent treatment | 8197 |
84%
|
| 2 | Pretreated, requiring future treatment | 156 |
1.6%
|
| 3 | Not pretreated, came with kit and treated at home | 0 |
0%
|
| 4 | Pretreated, treatment type not known | 0 |
0%
|
| 6 | Other | 624 |
6.4%
|
| 8 | Don't know | 755 |
7.7%
|
| 9 | 25 |
0.3%
|
|
| Sysmiss | 4667 |