| Variable | Year | Supplement |
|---|---|---|
| EXBTOTHR | 1993 | AIDS knowledge and attitudes |
| SOTHREAS | 1995 | AIDS knowledge and attitudes |
| SOTHREAS | 1994 | AIDS knowledge and attitudes |
| WHY12U11 | 1999 | Sample adult questionnaire |
| WHY12U11 | 1998 | Sample adult questionnaire |
| WHY12U11 | 1997 | Sample adult questionnaire |