. Author manuscript; available in PMC: 2013 Nov 23.

Published in final edited form as: Subst Use Misuse. 2004 Jun;39(7):1061–1094. doi: 10.1081/ja-120038030

Table 5.

OLS regression analysis of current drug use.

	Drinks of alcohol last 30 days (log)		Number of cigarettes last 30 days (log)		Marijuana hits last 30 days (log)		Frequency used alc./cig./mar last 30 days (log)
	b	b	b	b	b	b	b	b
Intercept	0.337^a	0.332^a	0.124^a	0.121^a	0.090^a	0.087^b	0.132^a	0.129^a
Age	0.050^a	0.050^a	0.040^a	0.040^a	0.065^a	0.065^a	0.038^a	0.038^a
Gender (M=l, F=0)	0.025	0.028	0.019	0.022	0.064^a	0.067^a	0.028^b	0.030^b
Usual grades	−0.043^a	−0.043^a	−0.033^a	−0.033^a	−0.047^a	−0.047^a	−0.031^a	−0.03l^a
English: fam./fr.	0.033^a	0.035^a	0.003	0.004	0.036^a	0.037^a	0.015^b	0.016^b
School lunch	−0.136^a	−0.140^a	−0.047^b	−0.049^b	−0.097^a	−0.099^a	−0.072^a	−0.074^a
Mexican only	0.180^a	0.187^a	0.059^b	0.063^b	0.199^a	0.202^a	0.097^a	0.100^a
Other Latino only	0.079	0.071	0.062	0.051	0.134^c	0.133^c	0.046	0.037
African Amer. only	−0.005	−0.003	−0.015	−0.010	0.139^a	0.141^a	0.015	0.018
Amer. Indian only	0.026	0.032	0.095^c	0.099^c	0.298^a	0.301^a	0.109^a	0.112^a
Mexican–mixed ID	0.166^a	0.177^a	0.070^b	0.077^b	0.242^a	0.247^a	0.121^a	0.127^a
Other mixed ID	0.049	0.052	0.090^b	0.086^b	0.088^c	0.084^c	0.047	0.045
Ethnic ID	−0.005	−0.053^c	−0.022^a	−0.048^b	−0.019^c	−0.037	−0.013^c	−0.033^b
Mex.×ethnic ID		0.072^b		0.037^c		0.030		0.031^c
Other Lat.×eth. ID		−0.069		−0.079^c		−0.016		−0.069^c
Afr. Am.×eth. ID		0.017		0.046		0.020		0.025
Indian×ethnic ID		0.125^c		0.113^b		0.069		0.062^c
Mex. mix.×eth. ID		0.073^c		0.045		0.032		0.036^c
Other mix.×eth. ID		0.026		−0.039		−0.046		−0.016
R ²	0.035	0.039	0.040	0.047	0.070	0.072	0.063	0.068
N	4183	4183	4191	4191	4181	4181	4197	4197

p<0.001.

p<0.01.

p<0.05