CBT OUTCOMES

摘要

A systematic review and metaanalysis of 69 randomised clinical trials covering more than 4,000 participants finds that the benefits of cognitive behavioural therapy (CBT) for treating anxiety disorders, post-traumatic stress disorder (PTSD) and obsessive-compulsive disorder (OCD) remain for more than a year after therapy. The review, led by Eva van Dis of Utrecht University in The Netherlands, included trials with follow-up of at least one month after treatment completion. Control groups included care as usual, relaxation, psychoeducation, placebo, supportive therapy or waiting list. Effect sizes were calculated for each disorder, expressed as Hedges'g (0.2 is considered a small effect size, 0.5 is medium and 0.8 is large).