| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, folic acid | 286 |
2.4%
|
| 2 | Yes, iron | 534 |
4.4%
|
| 3 | Both | 508 |
4.2%
|
| 4 | None | 3002 |
25%
|
| Sysmiss | 7675 |