Table 1.

Characteristics of the analytic sample of e-cigarette and cigarette dual users, Tobacco Use Supplement to the Current Population Survey, 2018–19 (N = 1,038).

	%(n)
E-cigarette variables (independent variables)
E-cigarette device
Disposable	10.3 (1 1 0)
An e-cigarette with replaceable cartridges	36.8 (3 7 4)
Tank	41.1 (4 4 0)
Pod mod	11.9 (1 1 4)
Flavors on e-cigarettes
Tobacco	28.5(3 3 8)
Menthol	24.1(2 2 0)
Sweet/spice	38.9 (3 9 6)
Other	8.4 (94)
Frequency of e-cigarette use
1–9 days in the past month	37.7 (4 2 9)
10–24 days in the past month	27.4 (2 6 5)
25 + days in the past month	34.5 (3 4 4)
Age
18–24 years	17.9 (1 1 6)
25–34 years	28.6 (2 5 7)
35–55 years	33.4 (3 9 5)
55 or more years	16.8 (2 7 0)
Sex
Female	41.5 (4 7 9)
Male	58.5 (5 5 9)
Race/Ethnicity
NH whites	76.7 (8 6 3)
NH blacks	5.2 (39)
Hispanic	10.7 (70)
NH other	7.3 (66)
Education
College or more	11.9 (1 1 4)
Some college	41.1 (4 4 0)
High school	36.8 (3 7 4)
Less than high school	10.3 (1 1 0)
Family income
$100,000 or more	53.1 (5 8 1)
$50,000-$99,999	30.1 (3 0 8)
<$50,000	16.8 (1 4 9)
Cigarette variables (Covariates)
Flavor on cigarettes
Non-menthol	65.8 (7 2 5)
Menthol	34.2 (3 1 3)
Frequency of cigarette use
1–9 days in the past month	12.3 (1 0 5)
10–24 days in the past month	18.8 (1 7 5)
25 + days in the past month	68.9 (7 5 8)
Cessation behaviors (study outcome)
Pre-contemplation to quit smoking	26.5 (2 8 8)
Contemplation to quit smoking	49.3 (5 1 9)
Preparation to quit smoking	24.1 (2 3 1)