Effect of cognitive-behavioral therapy for anxiety disorders on quality of life: a meta-analysis.
OBJECTIVE
Although cognitive-behavioral therapy (CBT) is effective for treating anxiety disorders, little is known about its effect on quality of life. To conduct a meta-analysis of CBT for anxiety disorders on quality of life, we searched for relevant studies in PubMed, PsycINFO, and the Cochrane Library and conducted manual searches.


METHODS
The search identified 44 studies that included 59 CBT trials, totaling 3,326 participants receiving CBT for anxiety disorders. We estimated the controlled and within-group random effects of the treatment changes on quality of life.


RESULTS
The pre-post within-group and controlled effect sizes were moderately strong (Hedges's g = 0.54 and Hedges's g = 0.56, respectively). Improvements were greater for physical and psychological domains of quality of life than for environmental and social domains. The overall effect sizes decreased with publication year and increased with treatment duration. Face-to-face treatments delivered individually and in groups produced significantly higher effect sizes than Internet-delivered treatments.


CONCLUSIONS
CBT for anxiety disorders is moderately effective for improving quality of life, especially in physical and psychological domains. Internet-delivered treatments are less effective than face-to-face treatments in improving quality of life.
Department of Psychology, Boston University.
Stefan G
SG
Hofmann
Department of Psychology, Boston University.
Jade Q
JQ
Wu
Department of Psychology, Boston University.
Hannah
H
Boettcher
D000328:Adult; D001007:Anxiety / Q000523:psychology / Q000628:therapy; D001008:Anxiety Disorders / Q000523:psychology* / Q000628:therapy*; D002986:Clinical Trials as Topic; D015928:Cognitive Behavioral Therapy; D006801:Humans; D010549:Personal Satisfaction; D011788:Quality of Life; D015203:Reproducibility of Results; D012107:Research Design / Q000592:standards; D058028:Research Report / Q000592:standards; D016896:Treatment Outcome