In supplemental analysis , the overall response rate ( LSAS score 50 ) was 46 % , including a significantly greater proportion of patients in the sertraline plus clonazepam group ( 56 % ) compared with the sertraline plus placebo group responding ( 36 % ; p = 0.027 ) ; differences did not reach significance between venlafaxine and sertraline plus placebo or sertraline plus clonazepam .