| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, own initiative | 80 |
2.7%
|
| 2 | Yes, doctor’s initiative | 46 |
1.6%
|
| 3 | Yes, screening program | 6 |
0.2%
|
| 4 | No | 2736 |
92.7%
|
| 5 | Don’t know | 83 |
2.8%
|