Table 2.
E-cigarettes |
Cigarettes |
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---|---|---|---|---|---|---|---|---|---|---|---|---|
Medium vs extreme harma |
No/low vs extreme harma |
Medium vs extreme harmb |
No/low vs extreme harmb |
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Cigarette use | ORc | 95% CI | p valued | ORc | 95% CI | p valued | ORc | 95% CI | p valued | ORc | 95% CI | p valued |
Nonuser (reference) | 1.00 | — | 1.00 | — | 1.00 | — | 1.00 | — | ||||
Cigarette only | 1.12 | 0.89–1.40 | .330 | 1.20 | 1.01–1.43 | .043 | 2.26 | 1.77–2.89 | <.001 | 3.12 | 1.68–5.82 | <.001 |
E-cigarette only | 1.37 | 0.97–1.93 | .077 | 2.97 | 2.08–4.26 | <.001 | 0.90 | 0.66–1.22 | .493 | 2.03 | 0.93–4.41 | .073 |
E-cigarette + cigarette | 2.02 | 1.40–2.93 | <.001 | 3.48 | 2.76–4.38 | <.001 | 2.10 | 1.59–2.79 | <.001 | 2.29 | 1.10–4.76 | .027 |
Note. The Hosmer-Lemeshow goodness-of-fit test: χ2 = 10.66, p = .830; reference is extreme harm.
The Hosmer-Lemeshow goodness-of-fit test: χ2 = 25.13, p = .068; reference is extreme harm.
Odds ratios adjusted for sex, race/ethnicity, age, total number of other tobacco products (cigars, hookah, and smokeless tobacco), mother’s education, father’s education, and school type.
Bolded p values indicate significance when α < .05.