Table 4.
Cigarette, E-Cigarette, Dual-, and Polytobacco/Nicotine Product Use Trends and Risk Factors, National Youth Tobacco Survey 2013 to 2015.
| Cigarette Use | E-Cigarette Use | Dual Use | Poly Use | |||||
|---|---|---|---|---|---|---|---|---|
| Variable | aOR (95% CI)a | P Value | aOR (95% CI)a | P Value | aOR (95% CI)a | P Value | aOR (95% CI)a | P Value |
| Ever use | ||||||||
| Survey year | ||||||||
| 2013 | (Ref) | (Ref) | (Ref) | |||||
| 2014 | 0.85 (0.80–0.90) | <.001 | 3.01 (2.79–3.25) | <.001 | 0.71 (0.65–0.78) | <.001 | 1.33 (1.23–1.43) | <.001 |
| 2015 | 0.78 (0.73–0.83) | <.001 | 4.83 (4.47–5.21) | <.001 | 0.65 (0.59–0.72) | <.001 | 1.35 (1.25–1.46) | <.001 |
| Sex | ||||||||
| Male | (Ref) | (Ref) | (Ref) | |||||
| Female | 0.81 (0.77–0.85) | <.001 | 0.73 (0.70–0.78) | <.001 | 0.95 (0.88–1.03) | NS | 0.68 (0.64–0.72) | <.001 |
| Race/ethnicity | ||||||||
| White | (Ref) | (Ref) | (Ref) | |||||
| Black | 0.88 (0.82–0.94) | <.001 | 0.51 (0.47–0.56) | <.001 | 1.41 (1.28–1.57) | <.001 | 0.49 (0.44–0.54) | <.001 |
| Hispanic | 1.13 (1.07–1.20) | <.001 | 0.99 (0.93–1.05) | NS | 1.19 (1.09–1.32) | <.001 | 0.95 (0.88–1.02) | NS |
| Other | 0.63 (0.57–0.71) | <.001 | 0.63 (0.56–0.72) | <.001 | 0.69 (0.57–0.84) | <.001 | 0.53 (0.45–0.61) | <.001 |
| Grade level | ||||||||
| 9th grade | (Ref) | (Ref) | (Ref) | |||||
| 10th grade | 1.40 (1.30–1.50) | <.001 | 1.35 (1.25–1.46) | <.001 | 1.32 (1.17–1.48) | <.001 | 1.46 (1.33–1.61) | <.001 |
| 11th grade | 1.75 (1.63–1.88) | <.001 | 1.52 (1.41–1.65) | <.001 | 1.47 (1.31–1.65) | <.001 | 1.91 (1.74–2.09) | <.001 |
| 12th grade | 2.15 (2.00–2.31) | <.001 | 1.80 (1.66–1.95) | <.001 | 1.66 (1.48–1.89) | <.001 | 2.65 (2.42–2.90) | <.001 |
| Current use | ||||||||
| Survey year | ||||||||
| 2013 | (Ref) | (Ref) | (Ref) | |||||
| 2014 | 0.73 (0.67–0.80) | <.001 | 3.34 (2.99–3.74) | <.001 | 0.66 (0.57–0.76) | <.001 | 1.17 (1.01–1.34) | .04 |
| 2015 | 0.68 (0.62–0.75) | <.001 | 3.95 (3.53–4.43) | <.001 | 0.65 (0.56–0.76) | <.001 | 1.06 (0.91–1.23) | NS |
| Sex | ||||||||
| Male | (Ref) | (Ref) | (Ref) | |||||
| Female | 0.71 (0.66–0.77) | <.001 | 0.66 (0.62–0.72) | <.001 | 0.70 (0.62–0.79) | <.001 | 0.58 (0.52–0.66) | <.001 |
| Race/ethnicity | ||||||||
| White | (Ref) | (Ref) | (Ref) | |||||
| Black | 0.51 (0.45–0.58) | <.001 | 0.41 (0.36–0.46) | <.001 | 0.53 (0.43–0.64) | <.001 | 0.45 (0.36–0.55) | <.001 |
| Hispanic | 0.81 (0.74–0.89) | <.001 | 0.95 (0.87–1.03) | NS | 0.71 (0.61–0.82) | <.001 | 0.92 (0.80–1.05) | NS |
| Other | 0.50 (0.41–0.60) | <.001 | 0.70 (0.59–0.83) | <.001 | 0.46 (0.33–0.63) | <.001 | 0.58 (0.43–0.77) | <.001 |
| Grade level | ||||||||
| 9th grade | (Ref) | (Ref) | (Ref) | |||||
| 10th grade | 1.41 (1.25–1.59) | <.001 | 1.22 (1.09–1.35) | <.001 | 1.32 (1.08–1.63) | .008 | 1.40 (1.16–1.69) | <.001 |
| 11th grade | 1.98 (1.76–2.22) | <.001 | 1.35 (1.21–1.50) | <.001 | 2.17 (1.79–2.63) | <.001 | 1.78 (1.48–2.13) | <.001 |
| 12th grade | 2.50 (2.23–2.79) | <.001 | 1.53 (1.38–1.71) | <.001 | 2.89 (2.40–3.48) | <.001 | 2.17 (1.82–2.59) | <.001 |
Abbreviations: e-cigarette, electronic cigarette; aOR, adjusted odds ratio; CI, confidence interval; NS, not significant.
a
Adjusted for sex, race/ethnicity, and grade level. The α level set to P < .05.