| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Spontaneously | 246 | 20715 |
4.4%
|
| 2 | After probe | 4795 | 392061 |
83.5%
|
| 3 | No | 685 | 56442 |
12%
|
| 9 | Missing | 3 | 184 |
0%
|
| Sysmiss | 32360 | 0 |