| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not pretreated | 0 |
0%
|
| 1 | Pretreated, permanent treatment | 20916 |
90.1%
|
| 2 | Pretreated, requiring future treatment | 1927 |
8.3%
|
| 3 | Not pretreated, came with kit and treated at home | 0 |
0%
|
| 4 | Pretreated, treatment type not known | 0 |
0%
|
| 6 | Other | 170 |
0.7%
|
| 8 | Don't know | 214 |
0.9%
|
| 9 | 161 | ||
| Sysmiss | 13042 |