Table 1.
Prevalence Rates by Nicotine Use Group | Nicotine vs. Nicotine-Freer |
Nicotine vs. Unknown Nicotiner |
||||||||
---|---|---|---|---|---|---|---|---|---|---|
Independent Variables | Nicotine-Free | Nicotine | Unknown | OR | 95% CI | OR | 95% CI | |||
Males | 63.8a | 61.1a | 39.6b | 0.98 | 0.56 | 1.72 | 2.47*** | 1.49 | 4.11 | |
Age | 15.70 (1.47)a | 16.06 (1.42)a | 15.87 (1.28)a | 0.96 | 0.76 | 1.22 | 0.99 | 0.80 | 1.22 | |
E-Cigarette Frequency | 6.98 (9.06)a | 13.59 (11.33)b | 6.92 (8.71)a | 1.04* | 1.01 | 1.07 | 1.04** | 1.01 | 1.07 | |
Cigarette Smokers | 9.9a | 62.7b | 39.1c | 10.80*** | 5.51 | 21.17 | 1.71* | 1.03 | 2.84 | |
Sources of Acquisition | ||||||||||
Friends | 48.9a | 35.1b | 55.0a | 0.86 | 0.48 | 1.56 | 0.75 | 0.44 | 1.28 | |
Parent/Family | 2.8a | 7.6a | 3.6a | 3.03 | 0.76 | 12.14 | 3.06 | 0.92 | 10.13 | |
Sibling | 7.1a | 4.3a | 8.9a | 0.36 | 0.10 | 1.26 | 0.36 | 0.11 | 1.14 | |
Gas Station | 7.8a | 19.5b | 10.1a | 2.17 | 0.91 | 5.19 | 2.00 | 0.98 | 4.08 | |
Online | 9.9a | 15.7b | 4.7a | 1.71 | 0.70 | 4.15 | 3.62** | 1.39 | 9.39 | |
Mall | 1.4a | 3.8a | 0.6a | 3.56 | 0.43 | 20.56 | 5.83 | 0.55 | 61.39 | |
Tobacco Shop | 12.1a | 34.6b | 13.6a | 1.96 | 0.92 | 4.06 | 2.12* | 1.11 | 4.08 | |
Other | 2.8a | 6.5a | 5.3a | 3.18 | 0.74 | 13.63 | 0.88 | 0.28 | 2.71 |
Note.
p < .05
p < .01
Prevalence rates for continuous variables are presented as mean (standard deviation) and as percentages for dichotomous variables.
Within rows, superscript letters reflect the results of Bonferroni-corrected comparisons among the nicotine status groups used (Chi-square for dichotomous variables; ANOVA for continuous variables). Cell values with different superscript letters assigned to them differ significantly from one another at p < .01. Regarding the multinomial logistic regression analyses, superscript “r” denotes the reference group. All independent variables were entered into the multinomial logistic regression model simultaneously.