| Value | Category | Cases | |
|---|---|---|---|
| 1 | severe | 15 |
0.4%
|
| 2 | moderate | 212 |
5.4%
|
| 3 | mild | 307 |
7.8%
|
| 4 | not anemic | 3395 |
86.4%
|
| Sysmiss | 2552 |