Intent-to-treat analyses indicated that , after @-month maintenance treatment , EX/RP yielded OCD outcomes that were superior to risperidone ( Y-BOCS = @ vs @ ; t@ = @ , P = @ ) ; more patients randomized to EX/RP met response criteria ( Y-BOCS decrease @ % : @ % vs @ % ; P < @ ) and achieved minimal symptoms ( Y-BOCS @ : @ % vs @ % ; P < @ ) .