Table 4.

Backward Selection Logit Model of Drug Court Impact on Recidivism

	Odds Ratio	Standard Error	95% CI

*Drug Court Impact Measures*
Drug court indicator	1.44	0.351	0.89	2.32
Time 1	0.46^**	0.129	0.26	0.79
Time 3	0.20^***	0.048	0.13	0.32
Time 4	0.24^***	0.056	0.15	0.37
Time 5	0.24^***	0.054	0.16	0.37
Time 6	0.15^***	0.036	0.09	0.24
Time 7	0.15^***	0.036	0.09	0.24
Drug court^*time 1	0.80	0.291	0.39	1.63
Drug court^*time 3	0.95	0.292	0.52	1.74
Drug court^*time 4	1.01	0.308	0.56	1.83
Drug court^*time 5	0.46^**	0.138	0.26	0.83
Drug court^*time 6	0.75	0.243	0.40	1.41
Drug court^*time 7	0.72	0.225	0.39	1.33

*Socio-Demographics*
Age (mean)	0.98^***	0.004	0.97	0.99
Male	1.00	0.114	0.80	1.25
Black non-Hispanic	1.19	0.128	0.96	1.47
Hispanic	1.28^*	0.158	1.01	1.63
Other race	1.05	0.254	0.65	1.69
High school graduate	1.00	0.099	0.82	1.21
Some college or greater education	0.86	0.105	0.68	1.10
Employed full/part-time	0.86	0.106	0.68	1.10
Employed other	0.81	0.115	0.61	1.07
Annual income of $10,000 +	0.85	0.086	0.70	1.03
Social support scale	0.89^*	0.041	0.82	0.98

*Substance Use and Mental health*
Felt need for drug treatment at baseline	0.82	0.102	0.64	1.04
Drinking scale at baseline	1.45	0.373	0.87	2.40
Drug use scale at baseline	1.40	0.332	0.88	2.23
Colorado Symptom Index (CSI)	0.98^***	0.006	0.97	0.99

*Criminal and Incarceration History*
Arrests prior to baseline	1.08^***	0.012	1.05	1.10
Prison stay prior to baseline	0.66^**	0.086	0.51	0.85
Public attorney	1.40^***	0.141	1.15	1.70
*Probation Supervision Measures*

Drug offender probation supervision at baseline	1.13	0.174	0.84	1.53
Incomplete probation contacts¹	1.07^*	0.032	1.01	1.13
Completed probation contacts¹	1.01	0.004	1.00	1.02
Number of drug tests¹	0.95^***	0.015	0.92	0.98
Number of positive drug tests¹	1.06	0.054	0.96	1.17

Indicates a measure that changes over time, from time period to time period

= significant at the 0.05 level

^**

= significant at the 0.01 level

^***

= significant at the 0.001 level