Table 4.
Correlates of Knowledge About E-Cigarette Regulation Among U.S. Young Adults Using Multinomial Logistic Regression Analysis (Reference Category is Correct Knowledge) (n = 1,247)
| Safety testing | Cessation aid | |||||||
|---|---|---|---|---|---|---|---|---|
| Don’t know | Incorrect | Don’t know | Incorrect | |||||
| RRR | 95% CI | RRR | 95% CI | RRR | 95% CI | RRR | 95% CI | |
| E-cigarette use (reference never use) | ||||||||
| Ever user, not in past 30 days | 0.77 | 0.45, 1.31 | 0.68 | 0.38, 1.21 | 0.68 | 0.42, 1.10 | 0.92 | 0.52, 1.64 |
| Current user (past 30 days) | 0.69 | 0.35, 1.36 | 0.34** | 0.16, 0.74 | 0.44** | 0.24, 0.80 | 0.39* | 0.18, 0.85 |
| Smoking (reference nonsmoker) | ||||||||
| Former smoker | 0.93 | 0.52, 1.67 | 0.86 | 0.44, 1.66 | 1.29 | 0.72, 2.30 | 1.06 | 0.51, 2.20 |
| Non-daily smoker | 0.74 | 0.40, 1.37 | 1.34 | 0.70, 2.56 | 0.62 | 0.36, 1.06 | 0.99 | 0.52, 1.88 |
| Daily smoker | 1.56 | 0.74, 3.28 | 1.41 | 0.62, 3.19 | 1.24 | 0.64, 2.40 | 1.38 | 0.63, 3.02 |
| Exposure to e-cigarette marketing | 0.77*** | 0.71, 0.84 | 1.02 | 0.93, 1.11 | 0.78*** | 0.72, 0.84 | 1.01 | 0.93, 1.10 |
| Female | 1.07 | 0.74, 1.53 | 0.92 | 0.62, 1.36 | 0.96 | 0.69, 1.34 | 0.82 | 0.55, 1.23 |
| Race (reference White non-Hispanic) | ||||||||
| Black non-Hispanic | 1.95* | 1.13, 3.38 | 1.89* | 1.05, 3.39 | 2.17** | 1.32, 3.55 | 1.98* | 1.11, 3.52 |
| Other non-Hispanic | 1.29 | 0.79, 2.11 | 1.39 | 0.82, 2.36 | 1.81* | 1.13, 2.90 | 1.57 | 0.90, 2.76 |
| Hispanic | 1.11 | 0.54, 2.29 | 1.61 | 0.76, 3.43 | 1.33 | 0.70, 2.51 | 1.13 | 0.50, 2.52 |
| Education (less than high school) | ||||||||
| High school | 0.89 | 0.44, 1.81 | 1.18 | 0.55, 2.56 | 1.07 | 0.56, 2.04 | 1.19 | 0.55, 2.55 |
| Some college | 1.13 | 0.56, 2.26 | 1.31 | 0.61, 2.82 | 1.18 | 0.63, 2.22 | 0.90 | 0.42, 1.91 |
| Bachelor’s degree or higher | 1.05 | 0.50, 2.23 | 1.99 | 0.87, 4.52 | 1.05 | 0.53, 2.07 | 1.03 | 0.45, 2.33 |
| Income (reference <$10,000) | ||||||||
| $10,000–$24,999 | 1.19 | 0.60, 2.38 | 1.59 | 0.76, 3.34 | 1.30 | 0.69, 2.46 | 1.19 | 0.56, 2.54 |
| $25,000–$49,999 | 0.76 | 0.40, 1.43 | 1.08 | 0.55, 2.14 | 0.62 | 0.35, 1.11 | 0.78 | 0.39, 1.56 |
| $50,000–$74,999 | 0.82 | 0.44, 1.52 | 0.64 | 0.32, 1.28 | 0.90 | 0.50, 1.62 | 1.04 | 0.51, 2.12 |
| >$75,000 | 0.77 | 0.43, 1.37 | 0.84 | 0.45, 1.57 | 0.65 | 0.39, 1.10 | 0.69 | 0.37, 1.32 |
| Age | 0.99 | 0.95, 1.03 | 0.97 | 0.93, 1.01 | 1.01 | 0.97, 1.05 | 1.00 | 0.96, 1.05 |
| Constant | 11.14*** | 3.21, 38.70 | 3.36 | 0.86, 13.09 | 5.41** | 1.77, 16.55 | 0.98 | 0.25, 3.84 |
CI = confidence interval; RRR = relative risk ratio.
*p < .05; **p < .01;***p < .001.