Table 4.

Multivariable analysis of e-cigarette use (all participants).

Predictors		Outcome: Current E-Cigarette Use
		aOR	95% CI	p-Value
Gender	Boy	2.56	1.56–4.20	<0.001 *
	Girl	ref.
Age	15 years	2.87	1.48–5.56	0.002 *
	14 years	2.01	1.03–3.92	0.041 *
	13 years	ref.
Paternal education level	At least high school	0.792	0.499–1.26	0.323
	Until junior high school	ref.
Any combustible tobacco product (current use)	Yes	7.85	5.00–12.3	<0.001 *
	No	ref.
E-cigarette use in the family	Yes	5.72	3.65–8.97	<0.001 *
	No	ref.
Intercept value: 3.56				<0.001 *

Statistically significant p-values are noted with an asterisk (*).