| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 1 |
25%
|
| 1 | Yes | 0 |
0%
|
| 2 | Doubtful | 0 |
0%
|
| 3 | Not examined | 3 |
75%
|
| 4 | Blind review | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 453 |