Table 1.

Latent Class Analysis Identifying Tobacco Use Clusters of Associated Risk Behaviors.

	Sample (N = 929)		Cluster 1 (No Tobacco Products) 57% n = 528		Cluster 2 (One or Two Tobacco Products) 18% n = 167		Cluster 3 (Poly Tobacco Products) 25% n = 234
	Lifetime	Current	Lifetime	Current	Lifetime	Current	Lifetime	Current
Lifetime Tobacco
No Tobacco	60%		1.00		0.00		0.12
One Tobacco Product	13%		0.00		0.65		0.08
Two Tobacco Products	9%		0.00		0.24		0.18
Poly Tobacco	18%		0.00		0.10		0.63
Marijuana and Other Drugs
Marijuana	34%	17%	0.07	0.02	0.36	0.14	0.95	0.65
Alcohol -	49%	22%	0.27	0.06	0.54	0.19	0.95	0.69
Drugs –	17%	8%	0.02	0.01	0.11	0.03	0.55	0.34
Friends who use	50%		0.31		0.50		0.92
Marijuana
Friends who use drugs	24%		0.11		0.14		0.60
Behaviors
Been Cyberbullied	9%		0.07		0.06		0.17
Ridden in car with drunk driver	16%		0.09		0.14		0.32
Arrested - Lifetime	8%		0.02		0.03		0.26
Grades
Mostly As and Bs	60%		0.71		0.56		0.39
Mostly Cs	27%		0.23		0.25		0.37
Mostly Ds and Fs	13%		0.07		0.19		0.23

Notes: % denotes percentage of the total non-missing sample responding “yes” to the corresponding question. Decimals under each cluster denote the probability of a student in given cluster responding “yes” to the question. Age was used as a covaiate. Bolded percentages represent current marijuana, alcohol, and other drug use.