| Value | Category | Cases | |
|---|---|---|---|
| 1 | severe | 1 |
0.1%
|
| 2 | moderate | 83 |
10.7%
|
| 3 | mild | 142 |
18.3%
|
| 4 | not anemic | 548 |
70.8%
|
| Sysmiss | 13860 |