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Gomes Ferreira, Michele, Mariano, Luciano Inácio, Vieira de Rezende, Junio, Caramelli, Paulo and Kishita, Naoko 
ORCID: https://orcid.org/0000-0001-8453-2714
(2022)
Effects of group Acceptance and Commitment Therapy (ACT) on anxiety and depressive symptoms in adults: A meta-analysis.
Journal of Affective Disorders, 309.
pp. 297-308.
ISSN 0165-0327
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Abstract
Background: A comprehensive meta-analysis quantitatively examining the effects of group Acceptance and Commitment Therapy (ACT) on anxiety and depressive symptoms is required to advance our understanding of its efficacy and moderating factors. Methods: Four electronic databases were searched in August 2018. An update search was conducted in November 2021. Forty-eight randomised controlled trials (RCTs) were included in this review (3292 participants: anxiety = 34 RCTs, depression = 40 RCTs). Results: The overall effect size for anxiety symptoms was medium-to-large (g = 0.52, p < 0.001; 95% CI = 0.30–0.73), while the overall effect size was small-to-medium for depressive symptoms (g = 0.47, p < 0.001; 95% CI = 0.31–0.64). Subgroup analyses demonstrated that group ACT was significantly superior to non-active controls (e.g., waiting list) in reducing anxiety and depressive symptoms. Group ACT was only significantly superior to active controls (e.g., CBT) in reducing depressive symptoms. Subgroup analyses also demonstrated that the effect size can vary depending on the number of sessions provided and the primary condition of participants recruited. Limitations: The number of studies included in each category of subgroup analyses was small and the risk of bias varied across studies. There was high heterogeneity among the included studies, and this might have affected the results. Conclusion: The current evidence suggests that group ACT may be effective in treating anxiety and depressive symptoms, perhaps more so for depressive symptoms when compared to other well-established treatments. The intensity of treatment and the targeted population may need to be considered when delivering group ACT.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding Information: NK and two research assistants' time was funded by the grant (grant reference number: DEM-17 ) being awarded to NK from the National Institute for Health Research (NIHR) Applied Research Collaboration East of England (ARC EoE) programme. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health. PC was supported by research grant from CNPq , Brazil (bolsa de produtividade em pesquisa). MGF was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brazil (CAPES). |
| Uncontrolled Keywords: | acceptance and commitment therapy,anxiety,depression,group psychotherapy,meta-analysis,clinical psychology,psychiatry and mental health ,/dk/atira/pure/subjectarea/asjc/3200/3203 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > School of Health Sciences |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Groups > Dementia & Complexity in Later Life Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 21 Apr 2022 15:30 |
| Last Modified: | 19 Oct 2023 03:19 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/84717 |
| DOI: | 10.1016/j.jad.2022.04.134 |
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