| Value | Category | Cases | |
|---|---|---|---|
| 0 | No severe | 0 |
0%
|
| 1 | Most severe | 21 |
84%
|
| 2 | Second most severe | 3 |
12%
|
| 3 | Third most severe | 1 |
4%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 1700 |