Predictors of outcome in residential cognitive and interpersonal treatment for social phobia: Do cognitive and social dysfunction moderate treatment outcome?

Background: The predictors of residential cognitive (RCT) and residential interpersonal Treatment (RIPT) for social phobia were explored. (1) Sotsky et al. (1991) found differential effects of CT and IPT for depression, suggesting that the level of cognitive or social dysfunction predicted differential outcome. We examined whether an analogous effect could be demonstrated in 10 weeks of residential treatment of 80 social phobia subjects. (2) We also included expectations, age of onset, severity of illness, concurrent anxiety, mood, avoidant personality disorder, and body dysmorphic disorder as predictors in this exploratory study.Method: Main outcome was the social phobia subscale of Social Phobia and Anxiety Inventory (SPAI SP). DSM-IV axis I and II interviews were completed.Results: (1) Sotsky et al. (1991) findings were not reproduced. However, RIPT subjects with poor general functioning were less improved following treatment. Subjects with concurrent agoraphobia responded better with RCT than subjects without agoraphobia. (2) Age of onset and expectations were the most powerful predictors of post treatment outcome.Conclusion: Some patient characteristics appear to impact outcome with RIPT and RCT differentially. The findings are discussed.