| Value | Category | Cases | |
|---|---|---|---|
| 0 | No: received treatm. | 573 |
62.6%
|
| 1 | Yes: no treatment | 341 |
37.3%
|
| 8 | Dk | 1 |
0.1%
|
| 9 | Missing | 14 | |
| Sysmiss | 22109 |