| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Spontaneously | 69 | 6140 |
1.3%
|
| 2 | After probe | 5112 | 417340 |
88.9%
|
| 3 | No | 545 | 45739 |
9.7%
|
| 9 | Missing | 3 | 184 |
0%
|
| Sysmiss | 32360 | 0 |