作者
Emily Carl, Sara M Witcraft, Brooke Y Kauffman, Eilis M Gillespie, Eni S Becker, Pim Cuijpers, Michael Van Ameringen, Jasper AJ Smits, Mark B Powers
发表日期
2020/1/2
来源
Cognitive Behaviour Therapy
卷号
49
期号
1
页码范围
1-21
出版商
Routledge
简介
The purpose of this meta-analysis was to provide updated pooled effect sizes of evidence-based psychotherapies and medications for generalized anxiety disorder (GAD) and to investigate potential moderators of outcomes. Seventy-nine randomized controlled trials (RCT) including 11,002 participants with a diagnosis of GAD were included in a meta-analysis that tested the efficacy of psychotherapies or medications for GAD. Psychotherapy showed a medium to large effect size (g = 0.76) and medication showed a small effect size (g = 0.38) on GAD outcomes. Psychotherapy also showed a medium effect on depression outcomes (g = 0.64) as did medications (g = 0.59). Younger age was associated with a larger effect size for psychotherapy (p < 0.05). There was evidence of publication bias in psychotherapy studies. This analysis found a medium to large effect for empirically supported psychotherapy interventions …
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E Carl, SM Witcraft, BY Kauffman, EM Gillespie… - Cognitive Behaviour Therapy, 2020