| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Spontaneously | 79 | 6905 |
1.5%
|
| 2 | After probe | 4126 | 336322 |
71.6%
|
| 3 | No | 1521 | 125992 |
26.8%
|
| 9 | Missing | 3 | 184 |
0%
|
| Sysmiss | 32360 | 0 |