Table 2.

Sources of Variance on NEGATIVE Subjective Effects to Alcohol, Tobacco and Marijuana use, %, (95% CI).

	Model	A	C	E	T
ALCOHOL
Full	Males	0.24 (0.00-0.42)	0.00 (0.00-0.22)	0.73 (0.58-0.88)	0.04 (0.00-0.20)
	Females	0.26 (0.00-0.48)	0.03 (0.00-0.35)	0.67 (0.52-0.84)
Final	(Males and Females set equal)	0.31 (0.21-0.41)	--	0.69 (0.59-0.79)	--
TOBACCO
Full	Males	0.07 (0.00-0.48)	0.00 (0.00-0.30)	0.76 (0.51-0.94)	0.00 (0.00-0.28)
	Females	0.18 (0.00-0.55)	0.00 (0.00-0.30)	0.32 (0.55-0.99)
Final	(Males and Females set equal)	0.26 (0.08-0.42)	--	0.74 (0.58-0.92)	--
MARIJUANA
Full	Males	0.23 (0.00-0.41)	0.00 (0.00-0.00)	0.77 (0.59-0.98)	0.00 (0.00-0.21)
	Females	0.27 (0.00-0.62)	0.16 (0.00-0.48)	0.77 (0.59-0.81)
Final	(Males and Females set equal)	0.32 (0.17-0.46)	--	0.68 (0.54-0.73)	--

Note: CI, confidence interval; A, additive genetic; D, non-additive genetic; C, shared environment, E: non-shared environment; T, twin influences.