Table 1 Demographic characteristics, by cohort.
Variable | Vaper cohort | Control cohort |
|---|---|---|
N (%) | N (%) | |
Total | 491 (100.0) | 257 (100.0) |
Age group | ||
18–24 years | 172 (35.0) | 51 (19.8) |
25–44 years | 308 (62.7) | 185 (72.0) |
45–64 years | 11 (2.2) | 21 (8.2) |
65 years and older | 0 (0.0) | 0 (0.0) |
Sex | ||
Male | 265 (54.0) | 125 (48.6) |
Female | 215 (44.0) | 127 (49.4) |
Transgender | 3 (0.6) | 3 (1.2) |
Prefer to not say | 7 (1.4) | 2 (0.8) |
Employment status | ||
Full-time (≥ 35 h per week) | 291 (59.3) | 137 (53.3) |
Part-time (15–34 h per week) | 66 (13.4) | 40 (15.6) |
Part-time (< 15 h per week) | 31 (6.3) | 9 (3.5) |
Self-employed | 44 (9.0) | 23 (8.9) |
Unemployed | 11 (2.2) | 7 (2.7) |
Retired | 1 (0.2) | 3 (1.2) |
Student | 40 (8.1) | 34 (13.2) |
Stay-at-home parent or spouse | 7 (1.4) | 4 (1.6) |
Prefer not to answer | 0 (0.0) | 0 (0.0) |
Education level | ||
Less than high school | 4 (0.8) | 3 (1.2) |
High school | 65 (13.2) | 49 (19.1) |
Some college/university | 212 (43.2) | 90 (35.0) |
Bachelor’s degree or higher | 208 (42.4) | 115 (44.7) |
Prefer to not say | 2 (0.4) | 0 (0.0) |
