The percentage of agencies that offered programs for clients with dual diagnoses changed little, if at all, over time (48 percent in 1997, compared with 49 percent in 2002). As shown in F1, data from the 2002 survey showed marked geographic variation in the availability of these programs. An analysis of the 2002 data with logistic regression models stratified by state showed that agencies were more likely to offer these programs if they received Medicaid payments, had agreements with managed care organizations, were larger, were hospital based, or provided outpatient non-methadone treatment (all p<.001). For-profit agencies and methadone clinics were less likely to offer these programs (p<.001 and p<.05, respectively). The interaction term for Medicaid and managed care was not significant. The mean±SD facility caseload was found to be 80±126 for facilities that did not provide programs for persons with dual diagnoses and 100±186 for facilities that did provide such services.