Table 1. Baseline characteristics of study population by product use status.
| Overall N = 3415 |
Non-users N = 2636 |
Sole e-cigarette users N = 30 |
Cigarette smokers N = 711 |
Dual users N = 38 |
|
|---|---|---|---|---|---|
| Sociodemographic characteristics (%) | |||||
| Sex | |||||
| Male | 49.9 | 47.3 | 60.0 | 58.2 | 68.4 |
| Female | 50.1 | 52.7 | 40.0 | 41.8 | 31.6 |
| Age (years) | |||||
| 18–30 | 23.1 | 23.2 | 36.7 | 21.9 | 31.6 |
| 30–45 | 25.8 | 24.9 | 30.0 | 29.0 | 29.0 |
| 45–65 | 31.8 | 29.9 | 30.0 | 39.0 | 26.3 |
| > 65 | 19.3 | 22.0 | 3.3 | 10.1 | 13.2 |
| Race/Ethnicity | |||||
| Hispanic | 26.8 | 28.9 | 30.0 | 19.0 | 26.3 |
| Non–Hispanic White | 41.6 | 40.1 | 43.3 | 46.7 | 47.4 |
| Non–Hispanic Black | 17.7 | 15.7 | 10.0 | 25.6 | 13.2 |
| Other (including multiracial) | 14.0 | 15.4 | 16.7 | 8.7 | 13.2 |
| Educational level | |||||
| Less than high school | 21.5 | 19.8 | 13.3 | 27.1 | 39.5 |
| High school (or equivalent) | 23.2 | 20.7 | 30.0 | 32.4 | 18.4 |
| At least some college | 55.3 | 59.5 | 56.7 | 40.5 | 42.1 |
| Family income (per year) | |||||
| < $20,000 | 22.1 | 18.7 | 24.1 | 34.5 | 20.6 |
| $20,000 –$45,000 | 30.3 | 28.6 | 24.1 | 36.5 | 41.2 |
| $45,000 - $75,000 | 19.6 | 20.9 | 24.1 | 14.6 | 20.6 |
| > $75,000 | 27.9 | 31.8 | 27.6 | 14.4 | 17.7 |
| Risk factors (%) | |||||
| BMI categories | |||||
| Underweight | 2.0 | 1.8 | 0 | 2.8 | 5.3 |
| Normal weight | 30.5 | 30.0 | 30.0 | 31.5 | 47.4 |
| Overweight | 33.3 | 33.6 | 23.3 | 33.1 | 26.3 |
| Obese | 34.1 | 34.6 | 46.7 | 32.6 | 21.1 |
| Heavy drinking | 8.9 | 5.9 | 3.4 | 20.1 | 18.6 |
| Any Recreational Physical activity † | 51.9 | 54.1 | 50.0 | 43.0 | 60.5 |
Heavy drinking defined as use of ≥14 alcoholic drinks/week for men, and ≥7 drinks/week for women in a typical week.
† - Recreational physical activity defined as performance of moderate or vigorous physical activity for at least 10 minutes continuously in a typical week.