| Value | Category | Cases | |
|---|---|---|---|
| 0 | No: received treatm. | 1766 |
65.5%
|
| 1 | Yes: no treatment | 929 |
34.4%
|
| 8 | DK | 2 |
0.1%
|
| 9 | 11 | ||
| Sysmiss | 16732 |