Cognitive Behavioural Therapy (CBT) is effective in treating Social Anxiety Disorder (SAD). However, less is known about whether gains achieved in disorder-specific and secondary outcomes (e.g., depression, general anxiety, quality of life, and self-esteem) are maintained 12 months or longer. A systematic literature search yielded 25 relevant studies that administered CBT to participants with SAD. Multivariate meta-analyses of post-treatment assessments, found that CBT was superior to control conditions in reducing social anxiety (g =.74), depression (g =.52), general anxiety (g =.69) and improving quality of life (g =.39). The within-groups effect sizes revealed that 12 months or more after CBT treatment, symptoms continued to improve for social anxiety (gav =.23) and quality of life (gav =.17), and gains were maintained for depressive (gav =.06) and general anxiety symptoms (gav =.03). However, meta-analyses of long-term outcomes lack comparison groups. Moderation was non-significant for the treatment model, format, number of sessions, treatment duration, or inclusion of booster sessions. Future research may investigate what drives improvement after treatment cessation and how CBT affects other co-occurring symptomatology. Taken together, CBT produces many benefits for SAD and individuals with co-occurring symptoms can benefit from extant SAD-focused treatments.
Keywords: Cognitive behavioural therapy; Long-term outcomes; Meta-analysis; Randomized controlled trials; Social anxiety disorder.
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