Metacognitive beliefs predict interpersonal problems in patients with social anxiety disorder.

Patients with Social Anxiety Disorder (SAD) typically report interpersonal problems, and these are important targets in treatment beyond social anxiety symptoms as they impair quality of life, maintain emotion symptoms and effect on social functioning. What factors contribute to interpersonal problems? In the current study we set out to explore the role of metacognitive beliefs as correlates of interpersonal problems in patients treated for SAD when controlling for the effect of social phobic cognitions and symptoms. The sample consisted of 52 patients with a primary diagnosis of SAD participating in a randomized controlled trial comparing cognitive therapy, paroxetine, pill placebo, or the combination of cognitive therapy and paroxetine in treating SAD. Two hierarchical multiple linear regression analyses were conducted to explore change in metacognitions as predictors of change in interpersonal problems when controlling for change in social phobic cognitions and social anxiety. Change in metacognitions accounted for unique variance in interpersonal problems improvement beyond change in cognitions. Furthermore, change in cognitions overlapped with change in social anxiety symptoms, and when controlling the overlap between these three predictors, only change in metacognitions was uniquely associated with improvement in interpersonal problems. This finding indicates that metacognitions are linked to interpersonal problems in patients with SAD with the implication that treatment should aim to modify metacognitive beliefs to alleviate interpersonal dysfunction.