| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, own initiative | 43 |
3%
|
| 2 | Yes, doctor’s initiative | 21 |
1.5%
|
| 3 | Yes, screening program | 2 |
0.1%
|
| 4 | No | 1300 |
91.2%
|
| 5 | Don’t know | 59 |
4.1%
|
| Sysmiss | 1526 |