| Value | Category |
|---|---|
| 1 | heart related |
| 2 | respiratory |
| 3 | asthma |
| 4 | epilepsy |
| 5 | cancer |
| 6 | diabetes |
| 7 | kidney/liver deseases |
| 8 | rheumatism related |
| 9 | gynecological problems |
| 10 | occupational illnesses |
| 11 | high/low blood pressure |
| 12 | gastrointestinal deseases |
| 13 | other |
| Sysmiss |