| Variable | Year | Supplement |
|---|---|---|
| EUSNUFF | 1991 | Health promotion disease prevention |
| EVSNUFF | 2000 | Sample adult questionnaire |
| SNUFF | 1994 | Year 2000 |
| SNUFF | 1992 | Cancer control |
| SNUFF | 1987 | Cancer control |
| SNUFFEV | 2010 | Sample adult cancer |
| SNUFFEV | 2005 | Sample adult cancer |