| Value | Category | Cases | |
|---|---|---|---|
| 0 | no: received treatm. | 598 |
52.7%
|
| 1 | yes: no treatment | 525 |
46.3%
|
| 8 | dk | 6 |
0.5%
|
| 9 | 6 |
0.5%
|
|
| 11 | .Z | 7097 |