Mean (SE in parentheses) for willingness to smoke in relation to level of e-cigarette use among adolescent non-smokers
| Frequency of use (number of cases) | ||||||
|---|---|---|---|---|---|---|
| Never | 1–2 times | 3–4 times | Yearly/Monthly | Weekly/Daily | ||
| Analysis | [1526] | [160] | [169] | [50] | [39] | F |
| Unadjusted | 0.16 | 0.39a | 0.37a | 0.57a | 0.56a | 15.50**** |
| (0.02) | (0.05) | (0.05) | (0.09) | (0.10) | ||
| Adjusted | 0.17 | 0.33a | 0.33a | 0.47a | 0.47a | 7.32**** |
| (0.02) | (0.05) | (0.05) | (0.09) | (0.10) | ||
Adjusted means based on 16 covariates including demographics, parenting, competence and personality. Higher levels of e-cigarette use are collapsed in cells for yearly/monthly use and weekly/daily use so as to increase power for pairwise comparisons. Cells with a common subscript do not differ significantly (p>0.05) in pairwise comparisons with Tukey-Kramer adjustment.
**** indicates p<0.0001.