| Value | Category | Cases | |
|---|---|---|---|
| 1 | severe | 8 |
0.2%
|
| 2 | moderate | 140 |
3.4%
|
| 3 | mild | 364 |
8.9%
|
| 4 | not anemic | 3568 |
87.5%
|
| Sysmiss | 4012 |