The intervention group compared with usual care group had improved functioning over the course of 18 months ( P < .05 ) , were more likely to have at least 50 % decrease in depressive symptoms at 12 months ( relative risk [ RR ] 1.74 , 95 % confidence interval [ CI ] 1.11-2 .73 ) , greater likelihood of at least four specialty mental health visits ( 6-month RR 2.70 , 95 % CI 1.73-4 .20 ; 12-month RR 2.53 , 95 % CI 1.63-3 .94 ) , adequate dose of antidepressant ( 6-month RR 1.64 , 95 % CI 1.03-2 .60 ; 12-month RR 1.71 , 95 % CI 1.08-2 .73 ) , and greater satisfaction with care ( 6-month RR 1.70 , 95 % CI 1.19-2 .44 ; 12-month RR 2.26 , 95 % CI 1.52-3 .36 ) .