Table 2.

Predictors of marijuana vaping initiation at one-year follow-up among baseline marijuana naïve participants (n = 1162)

		Marijuana vaping at 1-year follow-up (Dependent variable)
Baseline predictors (independent variables)		Odds Ratio (95% Confidence Interval)
Demographics
Age		0.89 (0.76, 1.04)
Gender	Men	1
	Women	0.72 (0.36,1.43)
Ethnicity
	White	1
	Filipino	0.62 (0.20, 1.93)
	NHPI	1.02 (0.36,2.87)
	Asian	1.41 (0.55,3.60)
	Other	1.28 (0.35,4.63)
College type
	4-year	1
	2-year	0.93 (0.45, 1.91)
Family income		1.04 (0.89,1.20)
Sensation seeking		1.06 (1.01, 1.12)***
Baseline current tobacco product use
	No use	1
	E-cigarette only use	4.63 (1.98, 10.8)***
	Cigarette only use	5.93 (1.79,19.7)**
	Dual use	13.4 (5.37,33.3)***
Baseline social network characteristics
No. of e-cigarette users		1.12 (0.94, 1.57)
No. of cigarette smokers		1.01 (0.76, 1.36)
No. of marijuana users		1.32 (1.03,1.67)*
No. of individuals who frequent vape shops		1.06 (0.74,1.51)
No. of individuals who know someone who works at a vape shop		1.09 (0.89, 1.34)
Direct marketing
Exposure through mail, e-mail, text messaging		1.08 (0.52,2.24)
Exposure through social media		1.20 (0.58,2.47)

^*p < 0.05;

^**p < 0.01;

^***p < 0.001