Table 1.

Sample descriptives (n=717)

	% (se)
Age 18 past 30 day e-cigarette use	12.14% (1.04)
Age 18 substance use
Past 30 day cigarette use	10.90% (1.11)
Past 30 day alcohol use	34.88% (1.25)
Past 30 day marijuana use	19.31% (1.28)
Past 30 day NMPD use	4.98% (0.50)
Age 19/20 substance use
Past 30 day cigarette use	10.03% (0.97)
Past 30 day alcohol use	45.71% (1.28)
Past 30 day marijuana use	20.12% (1.33)
Past 30 day NMPD use	2.97% (0.54)
Male	44.68% (1.62)
Race/ethnicity
Black	14.07% (1.35)
White	57.36% (1.64)
Hispanic	17.89% (1.33)
Other	10.68% (0.85)
Region
Northeast	14.07% (1.19)
Midwest	20.20% (1.23)
South	43.00% (1.62)
West	19.23% (1.26)
College plans	87.46% (1.18)
Parent with college degree	53.03% (1.64)