| Value | Category |
|---|---|
| -2 | na |
| -1 | missing |
| 1 | fever |
| 2 | headache |
| 3 | pain |
| 4 | stomach disorder |
| 5 | abnormal growth |
| 6 | toothache or related problems |
| 7 | upper respiratory tract disorder |
| 8 | sleeping disorder |
| 9 | anxiety depression |
| 10 | fatigue, general tiredness |
| 11 | muscular/joint pain |
| 12 | other |
| Sysmiss |