Table 2.

Logistic Regressions Predicting Adolescent Substance Use by Adolescent, Family, and Mother Characteristics

	Ever Drank Alcohol N = 262	Sometimes Drank Alcohol N=262	Ever Smoked Cigarettes N=276	Ever Used Marijuana N=273
	OR [CI]	OR [CI]	OR [CI]	OR [CI]
Intercept	1.05	0.11***	0.13***	0.00***
Mother Characteristics
Mothers’ Drinking Problems	2.50 [1.01 6.16]*	2.11 [1.05, 4.26]*	---	---
Mothers’ Smoking Frequency	---	---	1.10 [0.87, 1.39]	---
Mothers’ Frequency of Marijuana Use	---	---	---	1.32 [0.99, 1.76]+
Adolescent Characteristics
Male Gender	0.73 [0.38, 1.41]	1.01 [0.56, 1.84]	0.43 [0.24, 0.78]**	1.92 [0.75, 4.93]
Older Age (14–15 years)	5.34 [2.51, 11.38]***	6.38 [3.49, 11.66]***	5.52 [3.08, 9.87]***	43.72 [5.61, 340.48]***
Conduct Problems	1.20 [0.92, 1.55]+	1.05 [0.86, 1.29]	1.21 [0.99, 1.47]+	1.20 [0.93, 1.54]+
Family Characteristics
Social Class [Non-Manuala = Reference Group]
Manual Social Class (Unskilled/Partly Skilled)	0.73 [0.38, 1.41]	0.76 [0.40, 1.43]	0.84 [0.45, 1.57]	1.25 [0.49, 3.17]
Non-Employment	0.97 [0.49, 1.94]	1.05 [0.55, 2.00]	1.08 [0.57, 2.02]	1.04 [0.39, 2.80]
Two-parent Family	1.83 [0.91, 3.68]+	0.96 [0.50, 1.84]	1.15 [0.61, 2.20]	1.01 [0.37, 2.75]
Parent-Adolescent Conflict	1.01 [0.94, 1.08]	1.03 [0.97, 1.09]	1.04 [0.98, 1.10]	1.04 [0.95, 1.13]

^aOne or Both Professional/ Managerial/Technical/ Skilled Non-manual.

⁺p < .10 (one-tailed test, p < .05),

^*p < .05,

^**p < .01,

^***p < .001.

OR = Odds ratios. CI = 95% Confidence intervals.