| Value | Category |
|---|---|
| 1 | received blood transfusions |
| 2 | had many sexual partners |
| 3 | had unprotected sex w/casual partners |
| 4 | used iv drugs/shared needles |
| 5 | partner had sex w/other women |
| 6 | get infected during dental/medical treatments |
| 7 | get infected manicure/pedicure |
| 8 | other |
| 9 | do not know/refused |
| Sysmiss |