| Value | Category |
|---|---|
| 1 | Heart conditions |
| 2 | Blood pressure |
| 3 | Diabetics |
| 4 | Asthma |
| 5 | Epilespy |
| 6 | Cancer |
| 7 | Stomach diseases/Gastritis |
| 8 | Eye diseases |
| 9 | Arthritis |
| 10 | Mental retardation |
| 11 | Haemorrhoids |
| 12 | Catarrh |
| 13 | Severe headache |
| 14 | Naturally disable |
| 15 | Disabled by an accident |
| 19 | Other |
| 20 | |
| 51 | |
| Sysmiss |