E-cigarette variables (independent variables) |
|
|
|
|
|
|
E-cigarette device |
|
|
|
|
|
|
Disposable |
40.1% |
1.00 |
1.00 |
23.5% |
1.00 |
1.00 |
An e-cigarette with replaceable cartridges |
51.0% |
1.65* (1.02–2.7))
|
1.69* (1.04–2.77)
|
21.1% |
1.17 (0.64–2.14) |
1.22 (0.65–2.32) |
Tank |
52.4% |
2.00* (1.22–3.26)
|
2.03* (1.20–3.44)
|
23.8% |
1.54 (0.81–2.92) |
1.41 (0.72–2.75) |
Pod mod system |
41.3% |
1.60 (0.80–3.18) |
1.87 (0.86–4.06) |
35.3% |
2.33* (1.08–5.00)
|
1.99 (0.81–4.90) |
Flavors on e-cigarettes |
|
|
|
|
|
|
Tobacco |
49.6% |
1.00 |
1.00 |
24.2% |
1.00 |
1.00 |
Menthol |
51.2% |
1.10 (0.70–1.73) |
1.19 (0.70–2.01) |
24.3% |
1.07 (0.63–1.82) |
0.89 (0.46–1.69) |
Sweet/spice |
46.9% |
0.89 (0.62–1.26) |
0.86 (0.58–1.28) |
25.2% |
0.98 (0.62–1.54) |
0.75 (0.46–1.24) |
Other |
53.9% |
1.03 (0.57–1.83) |
1.06 (0.61–1.85) |
18.4% |
0.72 (0.33–1.54) |
0.70 (0.32–1.54) |
Frequency of e-cigarette use |
|
|
|
|
|
|
1–9 days in the past month |
51.2% |
1.00 |
1.00 |
14.6% |
1.00 |
1.00 |
10–24 days in the past month |
52.5% |
1.68* (1.12–2.53)
|
1.79* (1.20–2.69)
|
26.7% |
3.00*** (1.73–5.19)
|
3.73*** (2.15–6.48)
|
25 + days in the past month |
44.8% |
1.32 (0.93–1.87) |
1.25 (0.83–1.87) |
32.5% |
3.35*** (2.11–5.30)
|
3.00*** (1.87–4.82)
|
Sociodemogrqaphic Variables |
|
|
|
|
|
|
Age |
|
|
|
|
|
|
18–24 years |
41.3% |
1.00 |
1.00 |
27.9% |
1.00 |
1.00 |
25–34 years |
45.9% |
1.25 (0.73–2.11) |
1.36 (0.77–2.41) |
26.7% |
1.08 (0.61–1.91) |
1.39 (0.72–2.67) |
35–55 years |
54.3% |
1.75* (1.07–2.86)
|
2.05* (1.20–3.49)
|
22.5% |
1.08 (1.07–2.86) |
1.60 (0.79–3.26) |
55 or more years |
53.1% |
1.45 (0.88–2.38) |
1.71 (0.95–3.06) |
19.7% |
0.80 (0.45–1.42) |
1.22 (0.60–2.47) |
Sex |
|
|
|
|
|
|
Female |
49.6% |
1.00 |
1.00 |
28.5% |
1.00 |
1.00 |
Male |
49.1% |
0.72* (0.54–0.99)
|
0.70* (0.51–0.96)
|
21.0% |
0.54** (0.37–0.78)
|
0.42*** (0.28–0.63)
|
Race/Ethnicity |
|
|
|
|
|
|
NH whites |
49.0% |
1.00 |
1.00 |
24.3% |
1.00 |
1.00 |
NH blacks |
53.7% |
1.03 (0.45–2.37) |
1.02 (0.47–2.24) |
17.9% |
0.79 (0.25–1.94) |
0.61 (0.19–1.97) |
Hispanic |
40.3% |
0.75 (0.39–1.46) |
0.82 (0.43–1.56) |
30.6% |
1.16 (0.58–2.31) |
1.18 (0.54–2.59) |
NH other |
63.2% |
1.76 (0.86–3.60) |
1.62 (0.76–3.45) |
17.2% |
0.96 (0.39–2.37) |
1.00 (0.39–2.56) |
Education |
|
|
|
|
|
|
College or more |
55.6% |
1.00 |
1.00 |
17.2% |
1.00 |
1.00 |
Some college |
46.6% |
0.87 (0.53–1.43) |
0.89 (0.54–1.49) |
27.3% |
1.65 (0.91–3.00) |
1.75 (0.87–3.52) |
High school |
50.4% |
0.97 (0.68–1.58) |
1.07 (0.67–1.72) |
24.2% |
1.50 (0.80–2.81) |
1.91 (0.94–3.91) |
Less than high school |
44.9% |
0.70 (0.37–1.34) |
0.93 (0.47–1.87) |
23.9% |
1.21 (0.53–2.70) |
2.05 (0.85–4.95) |
Family income |
|
|
|
|
|
|
$100,000 or more |
44.5% |
1.00 |
1.00 |
26.0% |
1.00 |
1.00 |
$50,000-$99,999 |
48.1% |
1.17 (0.71–1.91) |
1.09 (0.65–1.83) |
24.5% |
1.02 (0.57–1.80) |
0.83 (0.43–1.59) |
<$50,000 |
51.5% |
1.35 (0.87–2.11) |
1.34 (0.84–2.14) |
23.3% |
1.05 (0.61–1.79) |
0.83 (0.43–1.58) |
Cigarette variables (Covariates) |
|
|
|
|
|
|
Flavor on cigarettes |
|
|
|
|
|
|
Non-menthol |
50.4% |
1.00 |
1.00 |
23.4% |
1.00 |
1.00 |
Menthol |
47.3% |
0.91 (0.68–1.22) |
0.85 (0.58–1.24) |
25.6% |
1.06 (0.71–1.58) |
1.13 (0.70–1.83) |
Frequency of cigarette use |
|
|
|
|
|
|
1–9 days in the past month |
43.4% |
1.00 |
1.00 |
34.4% |
1.00 |
1.00 |
10–24 days in the past month |
43.3% |
1.44 (0.70–3.00) |
1.35 (0.61–3.02) |
41.3% |
1.72 (0.86–3.49) |
1.63 (0.73–3.63) |
25 + days in the past month |
52.0% |
0.88 (0.49–1.56) |
0.66 (0.36–1.23) |
17.6% |
0.37** (0.21–0.69)
|
0.29*** (0.14–0.56)
|
*p value < 0.05, ** p value < 0.005, *** p value < 0.001 |