ACC had significantly higher rates of abstinence than UCC from heavy alcohol use , t ( 297 ) = 2.66 , p < .01 , d = 0.31 ; any alcohol use , t ( 297 ) = 2.63 , p < .01 , d = 0.30 ; any marijuana use , t ( 297 ) = 1.95 , p = .02 , d = 0.28 ; or any AOD use , t ( 297 ) = 1.88 , p = .02 , d = 0.30 ; and had higher rates in remission , OR = 2.31 , 90 % CI [ 1.10 , 4.85 ] , p = .03 .