TABLE 3.

Adjusted odds ratios and 95% confidence intervals from multinomial logistic regression analysis of cocaine dependence classes among outpatient cocaine users (n = 287)

LCA-defined cocaine dependence classes	Compulsive use vs. non-dependence CU vs. ND	Tolerance– compulsive use vs. non- dependence TCU vs. ND	Physiological dependence vs. non- dependence PD vs. ND	Physiological dependence vs. compulsive use PD vs. CU	Physiological dependence vs. tolerance- compulsive use PD vs. TCU	Compulsive use vs. tolerance- compulsive use CU vs. TCU
Age (continuous variable)	0.97 (0.91–1.03)	0.97 (0.92–1.03)	0.91 (0.86–0.96)*	0.94 (0.89–0.99)*	0.93 (0.88–0.98)*	0.99 (0.93–1.06)
Sex (vs. male) Female	0.56 (0.22–1.47)	0.85 (0.33–2.16)	1.52 (0.69–3.37)	2.71 (1.25–5.86)*	1.79 (0.82–3.90)	0.66 (0.26–1.70)
Years of cocaine use (continuous variable)	0.97 (0.90–1.04)	0.97 (0.90–1.04)	1.07 (1.01–1.14)*	1.01 (0.96–1.07)	1.11 (1.04–1.19)*	1.09 (1.02–1.18)*
DSM-IV Alcohol Dependence (vs. no)	1.53 (0.56–4.20)	1.22 (0.45–3.33)	3.48 (1.52–8.00)*	2.28 (1.04–4.98)*	2.85 (1.29–6.31)*	1.25 (0.47–3.36)
Number of prior drug abuse treatments (continuous variable)	1.96 (1.37–2.80)*	1.91 (1.33–2.73)*	1.95 (1.37–2.76)*	0.99 (0.89–1.11)	1.02 (0.90–1.16)	1.03 (0.88–1.20)
Number of prior outpatient mental health treatments (continuous variable)	1.06 (0.99–1.14)	0.72 (0.43–1.19)	1.12 (0.81–1.54)	1.57 (1.01–2.45)*	1.56 (1.01–2.42)*	0.99 (0.55–1.79)

LCA = latent class analysis.

The adjusted multinomial logistic regression model includes all variables listed in the first column.

^*: p-value < 0.05.