Table 2.

Three logistic regressions based on two outcomes of treatment progress (Model 1) making progress and (Model 2 & 3) completion of treatment plan

	Model 1: Progress Vs No Progress			Model 2: Completion Vs No Progress			Model 3: Completion Vs Progress
	OR	95% CI	p value	OR	95% CI	p value	OR	95% CI	p value
Female	1.583	1.091, 2.298	0.016	1.063	0.645, 1.752	0.812	0.693	0.479, 1.003	0.052
Yeara
2013	0.529	0.278, 1.007	0.052	0.420	0.184, 0.957	0.039	0.829	0.390, 1.759	0.625
2015	0.330	0.178, 0.612	0.000	0.355	0.136, 0.930	0.035	1.151	0.438, 3.021	0.776
2017	0.294	0.146, 0.593	0.001	0.334	0.103, 1.083	0.068	1.174	0.376, 3.671	0.782
Interactions (year * gender)
2013 * Female	1.036	0.704, 1.525	0.858	1.533	0.901, 2.607	0.115	1.491	0.910, 2.444	0.113
2015 * Female	0.954	0.648, 1.404	0.810	1.524	0.888, 2.617	0.126	1.612	0.974, 2.668	0.063
2017 * Female	1.282	0.787, 2.088	0.318	1.222	0.747, 1.999	0.426	0.904	0.497, 1.642	0.740
Methadoneb	0.565	0.302, 1.056	0.074	0.366	0.163, 0.821	0.015	0.604	0.243, 1.506	0.280
Interaction (treatment type * gender)
Methadone * Female	0.668	0.481, 0.929	0.016	0.666	0.485, 0.916	0.013	1.017	0.727, 1.422	0.923
Racec
Black	1.044	0.525, 2.074	0.903	0.659	0.297, 1.458	0.303	0.632	0.352, 1.132	0.123
Latino	0.852	0.627, 1.158	0.307	0.939	0.721, 1.225	0.645	1.174	0.930, 1.482	0.178
Others	1.019	0.648, 1.602	0.935	0.737	0.462, 1.176	0.201	0.671	0.396, 1.137	0.139
Interactions (race * gender)
Black * Female	0.919	0.534, 1.582	0.760	0.666	0.357, 1.242	0.201	0.678	0.338, 1.358	0.273
Latino * Female	0.857	0.577, 1.272	0.444	0.617	0.408, 0.934	0.023	0.667	0.421, 1.056	0.084
Others * Female	0.670	0.312, 1.436	0.303	1.381	0.698, 2.734	0.354	1.967	0.813, 4.761	0.133
Age	1.009	0.999, 1.020	0.079	1.007	1.000, 1.014	0.052	0.999	0.988, 1.011	0.910
Education	1.009	0.979, 1.040	0.567	1.044	0.993, 1.098	0.090	1.040	0.996, 1.087	0.076
Homeless	0.694	0.531, 0.908	0.008	0.681	0.516, 0.899	0.007	1.037	0.717, 1.498	0.848
# prior treatment episodes	1.001	0.981, 1.020	0.955	1.002	0.976, 1.028	0.893	0.998	0.958, 1.039	0.910
# Observations used	6514			6467			2083

Intragroup correlation among clients within the same program was accounted for by cluster() specification in stata

OR: odds ratio; CI: confidence interval

^ayear 2011 as reference

^bCounseling as reference

^cWhite as reference