TABLE 3—

Probability of Diversion to Treatment of Drug-Involved Male Arrests: California, 1995–2005

	Model 1		Model 2		Model 3		Model 4
Variable	Pre-Prop36	Post-Prop36	Pre-Prop36	Post-Prop36	Pre-Prop36	Post-Prop36	Pre-Prop36	Post-Prop36
Blacks vs Whites
OR (95% CI)	0.469** (0.423, 0.521)	0.684** (0.617, 0.758)	0.410** (0.369, 0.456)	0.632** (0.569, 0.702)	0.673** (0.603, 0.751)	0.741** (0.665, 0.826)	0.681*** (0.606, 0.765)	0.727*** (0.648, 0.816)
Robust standard error	0.025	0.036	0.022	0.034	0.038	0.041	0.041	0.043
Demographics	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Arrest characteristics	No	No	Yes	Yes	Yes	Yes	Yes	Yes
Criminal history	No	No	No	No	Yes	Yes	Yes	Yes
County-fixed effectsa	No	No	No	No	No	No	Yes	Yes
Sample, no.	44 079	52 363	44 079	52 363	44 079	52 363	44 062	52 363
Cluster, no.	21 941	26 353	21 941	26 353	21 941	26 353	21 933	26 353
Test statistic for difference in coefficients: pre- vs post-Prop36b	−4.930**		−5.473**		−1.228		−0.790
Hispanics vs Whites
OR (95% CI)	0.761** (0.713, 0.811)	0.809** (0.760, 0.861)	0.747** (0.699, 0.797)	0.839** (0.787, 0.894)	0.655** (0.613, 0.701)	0.828** (0.776, 0.884)	0.628*** (0.586, 0.674)	0.742*** (0.694, 0.793)
Robust standard error	0.025	0.026	0.025	0.027	0.022	0.027	0.022	0.025
Demographics	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Arrest characteristics	No	No	Yes	Yes	Yes	Yes	Yes	Yes
Criminal history	No	No	No	No	Yes	Yes	Yes	Yes
County-fixed effectsa	No	No	No	No	No	No	Yes	Yes
Sample, no.	61 395	85 505	61 395	85 505	61 395	85 505	61 376	85 042
Cluster, no.	33 660	45 538	33 660	45 538	33 660	45 538	33 650	45 272
Test statistic for difference in coefficients: pre- vs post-Prop36b	−1.336		−2.486**		−4.895**		−3.356**

Note. CI = confidence interval; OR = odds ratio.

^aModels with county-fixed effects have a slightly smaller sample size because counties with no variation dropped out of the regression.

^bZ-test statistic for comparison of coefficients.

*P < .05; **P < .01; ***P < .001.