Basic characteristics of the studies.

CBGT, Cognitive-behavioral group therapy; WL, Waiting List; LSAS, Liebowitz Social Anxiety Scale; CGI-S, Clinical Global Impressions Scale; FQ, Fear Questionnaire; SIAS, Social Interaction Anxiety Scale; ADIS, Anxiety Disorders Inventory Schedule; ADIS-R, Anxiety Disorders Inventory Schedule–Revised; SIAS, Social Interaction Anxiety Scale; SPS, Social Phobia Scale; CGI-I, BSPS, Brief Social Phobia Scale; FNE, Fear of negative evaluation; Social Interaction Anxiety Scale; SPWSS, Social phobia weekly Summary Scale; SBQ, Social Behavior Questionnaire; ADIS-R, Anxiety Disorders Inventory Schedule–Revised; SPAI, Social Phobia and Anxiety Inventory – social phobia ; SDS, Sheehan Disability Scale; SAD, Social Anxiety Disorder; SADS, Social Avoidance and Distress Scale; DO, Drop-Out; Co, Completers; ITT, Intention-to-Treat; CBGT, cognitive-behavioral group-treatment; CBT, Cognitive-behavioral Therapy; DSM, Diagnostic and Statistical Manual of Mental Disorders; CR, Cognitive Restructuring; IR, interpersonal relationship