Sample characteristics (n=915)
| Characteristic | Younger non-smokers (n=279), % (n) | Younger smokers (n=264), % (n) | Older smokers (n=372), % (n) |
|---|---|---|---|
| Age | |||
| Mean (SD) | 20.6 (2.8) | 21.4 (2.1) | 49.0 (12.2) |
| Gender | |||
| Male | 33.3 (93) | 37.5 (99) | 50.3 (187) |
| Female | 66.7 (186) | 62.5 (165) | 49.7 (185) |
| Ethnicity | |||
| White | 71.3 (199) | 78.4 (207) | 85.8 (319) |
| Non-white | 26.5 (74) | 21.2 (56) | 14.0 (52) |
| No response | 2.2 (6) | 0.4 (1) | 0.2 (1) |
| Education | |||
| Low | 40.1 (112) | 40.5 (107) | 29.6 (110) |
| Moderate | 35.5 (99) | 42.1 (111) | 42.4 (158) |
| High | 23.3 (65) | 17.0 (45) | 27.7 (103) |
| No response | 1.1 (3) | 0.4 (1) | 0.3 (1) |
| E-cigarette ever use | |||
| Yes | 15.8 (44) | 51.9 (137) | 33.3 (124) |
| E-cigarette current use | |||
| Yes | 1.4 (4) | 22.3 (59) | 12.4 (46) |
Education: low=high school or less; moderate=technical/trade school, community college, or some university but no degree and high=university degree or more.