Table 5.

Logistic Regression Analysis (Y = Methamphetamine), Model #1

Eighth Grade					Eleventh Grade
	Model Fit					Model Fit
	Cases	1,400				Cases	1,213
	AIC	260.508				AIC	422.994
	Chi-square	160.333				Chi-square	124.767
	Significance	0.000				Significance	0.000
	Pseudo R2	0.108				Pseudo R2	0.098
Independent variables	Odds Ratio: Exp(B)	Statistical Significance	C.I.		Independent variables	Odds Ratio: Exp(B)	Statistical Significance	C.I.
			Lower	Upper				Lower	Upper
Antisocial behavior	3.62	0.000	1.87	7.02	Antisocial Behavior	1.76	0.074	0.95	3.29
Risky sex	1.45	0.112	0.92	2.29	Risky Sex	2.41	0.000	1.68	3.47
Depression	1.28	0.300	0.80	2.06	Depression	1.36	0.086	0.96	1.93
Suicide	1.35	0.119	0.93	1.96	Suicide	0.70	0.239	0.39	1.27
Smoked, last 30 days	2.11	0.081	0.91	4.90	Smoked, last 30 Days	2.52	0.002	1.39	4.56
Drank alcohol, last 30 days	3.11	0.022	1.18	8.20	Drank alcohol, last 30 days	0.69	0.369	0.31	1.54
Binge drinking, last 30 days	0.58	0.259	0.23	1.49	Binge drinking, last 30days	1.23	0.584	0.59	2.54
Smoked marijuana last 30 days	3.14	0.012	1.29	7.64	Smoked marijuana last 30 days	2.44	0.007	1.28	4.66
Gender: 0=female, 1=male	1.63	0.231	0.73	3.64	Gender: 0=female, 1=male	1.13	0.663	0.64	2.00
Female *antisocial behavior	7.43	0.001	2.22	14.81	Female * antisocial behavior	5.70	0.017	1.36	13.84
Male *antisocial behavior	2.60	0.024	1.13	5.98	Male * antisocial behavior	1.38	0.387	0.66	2.87
Female * risky sex	1.89	0.061	0.97	3.68	Female * risky sex	3.43	0.000	1.90	6.18
Male * risky sex	1.13	0.733	0.56	2.29	Male * risky sex	2.32	0.000	1.45	3.70
Female * depression	1.35	0.355	0.72	2.53	Female * depression	0.97	0.901	0.60	1.56
Male * depression	1.44	0.285	0.74	2.83	Male * depression	2.20	0.003	1.31	3.72
Female * suicide	1.01	0.974	0.60	1.70	Female * suicide	0.83	0.641	0.39	1.79
Male * suicide	1.86	0.027	1.07	3.23	Male * suicide	0.67	0.344	0.29	1.54
Female * tobacco	2.09	0.218	0.65	6.73	Female * tobacco	2.55	0.034	1.07	6.08
Male * tobacco	2.32	0.200	0.64	8.44	Male * tobacco	2.68	0.022	1.15	6.26
Female * alcohol	1.86	0.344	0.51	6.78	Female * alcohol	0.79	0.634	0.29	2.11
Male * alcohol	7.92	0.010	1.65	17.95	Male * alcohol	0.51	0.341	0.13	2.02
Female * binge drinking	0.70	0.571	0.20	2.43	Female * binge drinking	0.78	0.609	0.30	2.04
Male * binge drinking	0.42	0.238	0.10	1.76	Male * binge drinking	2.27	0.180	0.69	7.52
Female * marijuana	3.39	0.073	0.89	12.84	Female * marijuana	1.27	0.619	0.49	3.27
Male * marijuana	2.75	0.120	0.77	9.85	Male * marijuana	4.86	0.001	1.84	12.84