| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1156 |
47.1%
|
| 1 | Yes, severe | 1016 |
41.4%
|
| 2 | Yes, never severe | 282 |
11.5%
|
| 9 | Missing | 61 | |
| Sysmiss | 154317 |