| Value | Category |
|---|---|
| 0 | No |
| 1 | Safe sex |
| 2 | Abstain from sex |
| 3 | Using condoms |
| 4 | Only one sex partner |
| 5 | Avoid sex with prostitutes |
| 6 | Avoid sex with homosexuals |
| 7 | Avoid blood transfusion |
| 8 | Avoid injections |
| 9 | Avoid kissing |
| 11 | Avoid mosquitoes bite |
| 96 | Other |
| 98 | Don't know |