| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | Not pretreated | 0 |
0%
|
| 1 | Pretreated, permanent treatment | 5072 |
86.4%
|
| 2 | Pretreated, requiring future treatment | 71 |
1.2%
|
| 3 | Not pretreated, came with kit and treated at home | 0 |
0%
|
| 4 | Pretreated, treatment type not known | 0 |
0%
|
| 6 | Other | 354 |
6%
|
| 8 | Don't know | 342 |
5.8%
|
| 9 | 28 |
0.5%
|
|
| Sysmiss | 8557 |