Table 2.

Logistic regression model of the probability of past 30 day ANTP use.

Predictor	Coefficient	Std. Err.	z	Odds Ratio	95% c.i.	p-value
Sex	0.35	0.34	1.02	1.42	0.72, 2.77	.308
Age	−0.22	0.09	−2.40	0.81	0.67, 0.96	.016
Ethnicity	0.80	0.34	2.34	2.23	1.14, 4.37	.019
Nicotine dependence	−0.22	0.09	−2.56	0.80	0.68, 0.95	.011
Smoking intentions	0.12	0.14	0.89	1.13	0.87, 1.47	.374
Drinking days	0.06	0.02	2.31	1.06	1.01, 1.12	.021
Marijuana use	0.10	0.12	0.84	1.11	0.87, 1.41	.402
Premeditation	0.33	0.34	0.97	1.39	0.72, 2.69	.330
Perseverance	−0.07	0.35	−0.20	0.93	0.46, 1.86	.838
Sensation seeking	0.32	0.15	2.10	1.76	1.04, 2.98	.036
Positive urgency	0.26	0.11	2.26	1.46	1.05, 2.02	.024
Negative urgency	0.35	0.29	1.19	1.42	0.89, 2.51	.236