Table 2.
Weighted Multinomial Logistic Regression of Ever Use Groups and Cannabis Legalization and Tobacco Prevention Policies among Youth in the National Youth Tobacco Survey 2016–2017, n=36,841; N=52,032,641a
| Never Users of Tobacco (n=23,077) ARRR (95% CI) | Cannabis in E-cigarette Ever Users (n=3,758) ARRR (95% CI) | Other Tobacco Ever Users (n=4,507) ARRR (95% CI) | |
|---|---|---|---|
| State-Level Policies | |||
| Cannabis Policy | |||
| None or limited | Ref | Ref | Ref |
| Medical | 1.06 (0.87–1.29) | 1.34 (1.04–1.74) | 0.97 (0.79–1.21) |
| Medical and recreational | 1.05 (0.79–1.39) | 1.85 (1.26–2.71) | 0.97 (0.67–1.39) |
| Restrictions on Minor E-cigarette Sales | |||
| 18 years old | Ref | Ref | Ref |
| No policy in effect in 2016 | 1.24 (1.01–1.51) | 1.65 (1.26–2.15) | 1.11 (0.85–1.44) |
| 19 or 21 years old | 1.19 (0.88–1.61) | 1.54 (1.09–2.17) | 0.99 (0.76–1.30) |
| Comprehensive Smoke-free Indoor Laws | 0.86 (0.69–1.07) | 0.85 (0.66–1.08) | 0.88 (0.67–1.15) |
| Cigarette Tax, mean (SD) | 0.99 (0.91–1.08) | 0.94 (0.84–1.04) | 1.03 (0.91–1.16) |
| Tobacco Perceptions and Exposures | |||
| Harm of E-cigarette Use Some Days | |||
| A lot of harm | Ref | Ref | Ref |
| Some harm | 0.38 (0.32–0.46) | 0.63 (0.51–0.78) | 0.43 (0.35–0.53) |
| Little harm | 0.12 (0.10–0.15) | 0.45 (0.37–0.56) | 0.19 (0.16–0.23) |
| No harm | 0.07 (0.05–0.08) | 0.60 (0.47–0.77) | 0.18 (0.14–0.23) |
| Ease of Peers Buying Tobacco | |||
| Not easy at all | Ref | Ref | Ref |
| Somewhat easy | 0.93 (0.82–1.05) | 0.94 (0.79–1.12) | 0.87 (0.75–1.01) |
| Easy | 0.63 (0.55–0.72) | 1.18 (0.99–1.41) | 0.88 (0.75–1.05) |
| Someone in Home Uses Tobacco | 0.42 (0.38–0.46) | 1.07 (0.94–1.22) | 0.85 (0.76–0.96) |
| Secondhand Smoke in Public | 0.87 (0.79–0.97) | 1.06 (0.94–1.19) | 1.08 (0.96–1.21) |
| Secondhand Vapor in Public | 0.40 (0.36–0.45) | 1.15 (0.99–1.34) | 0.40 (0.36–0.46) |
| E-cigarette Ad Exposure, mean (SD) | 0.96 (0.95–0.98) | 1.05 (1.03–1.06) | 0.98 (0.96–0.99) |
| Sociodemographic variables | |||
| Year | |||
| 2016 | Ref | Ref | Ref |
| 2017 | 1.14 (0.99–1.32) | 1.65 (1.35–2.02) | 0.94 (0.79–1.12) |
| Household Median Income, mean (SD) | 1.12 (1.03–1.21) | 1.02 (0.90–1.16) | 0.99 (0.89–1.11) |
| Unemployment Rate, mean (SD) | 0.99 (0.89–1.10) | 1.05 (0.90–1.23) | 1.05 (0.90–1.21) |
| Speak Other Language | 0.85 (0.75–0.96) | 1.21 (1.04–1.42) | 1.09 (0.93–1.28) |
| Difficulty Focusing | 0.65 (0.58–0.72) | 1.40 (1.24–1.59) | 1.06 (0.90–1.23) |
| Age | |||
| 12 years or younger | Ref | Ref | Ref |
| 13–15 years old | 0.38 (0.31–0.47) | 0.90 (0.69–1.18) | 0.64 (0.50–0.81) |
| 16–17 years old | 0.18 (0.14–0.22) | 1.25 (0.95–1.65) | 0.56 (0.45–0.69) |
| 18 years or older | 0.15 (0.11–0.19) | 1.43 (1.06–1.95) | 0.57 (0.43–0.74) |
| Female | 1.14 (1.03–1.26) | 0.87 (0.76–0.99) | 0.96 (0.84–1.09) |
| Race/Ethnicity | |||
| White | Ref | Ref | Ref |
| Black | 1.34 (1.15–1.56) | 1.65 (1.33–2.05) | 2.52 (2.13–2.98) |
| Hispanic | 0.83 (0.71–0.97) | 1.15 (0.97–1.36) | 1.17 (0.97–1.41) |
| Asian | 1.86 (1.37–2.54) | 0.59 (0.39–0.89) | 1.29 (0.91–1.85) |
| Other | 0.68 (0.49–0.95) | 1.43 (1.01–2.04) | 1.27 (0.90–1.81) |
ARRR=Adjusted relative risk ratio
a
E-cigarette ever users represent the reference category for the outcome variable.