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Cognitive Behavior Therapy for Mental Disorders in Adults: A Unified Series of Meta-Analyses

Author/s: 
Pim Cuijpers, Mathias Harrer, Clara Miguel, Marketa Ciharova, Davide Papola, Djordje Basic, Cristina Botella

Importance: Cognitive behavior therapy (CBT) is a first-line treatment for most mental disorders. However, no meta-analytic study has yet integrated the results of randomized clinical trials on CBT across different disorders, using uniform methodologies and providing a complete overview of the field.

Objective: To examine the effect sizes of CBT for 4 anxiety disorders, 2 eating disorders, major depression, obsessive-compulsive disorder (OCD), posttraumatic stress disorder (PTSD), and psychotic and bipolar disorders on symptoms of the respective disorders using uniform methodologies for data extraction, risk of bias (RoB) assessment, and meta-analytic techniques.

Data sources: Major bibliographical databases (PubMed, PsycINFO, and Embase for all disorders) were searched up to January 1, 2024, for each disorder separately. Data analysis was performed from August 2024 to January 2025.

Study selection: Randomized clinical trials comparing CBT with inactive control conditions in adults with 1 of the mental disorders established through a clinical interview were included.

Data extraction and synthesis: Basic characteristics of patients, CBT, and studies were extracted. RoB was assessed with the Cochrane RoB tool 2. Meta-analyses were conducted using random-effects models.

Main outcomes and measures: The primary outcome was the standardized mean difference (Hedges g) indicating the difference between CBT and controls at posttreatment on symptoms of the respective disorders.

Results: A total of 375 trials (423 comparisons) between CBT and controls were included among 32 968 patients. The overall mean (SD) patient age was 43.4 (13.7) years, and the mean (SD) proportion of women was 0.68 (0.24). Effect sizes for CBT compared to all control conditions (g) were lower than 0.5 for bipolar and psychotic disorder; between 0.5 and 1.0 for panic, social anxiety, and generalized anxiety disorders, bulimia nervosa, binge eating disorders, depression, and OCD; and larger than 1.0 for PTSD and specific phobias (range of effect sizes: 0.31 for bipolar disorder to 1.27 for PTSD). Large effect sizes (g > 0.94) were observed in waitlist-controlled trials, a control condition mostly used in anxiety and eating disorders, PTSD, and OCD. Trials using care as usual showed more modest effect sizes (0.22-1.13). Study dropout rates within the CBT conditions ranged from 8% for specific phobia to 24% for PTSD.

Conclusions and relevance: In this unified series of meta-analyses, CBT was probably effective in the treatment of mental disorders, including major depression, anxiety disorders, PTSD, OCD, and eating disorders, and possibly effective in psychotic and bipolar disorders. However, the effect sizes depended on the type of control condition.

Keywords 
cognitive behavior therapy mental disorders counseling

The Management of Posttraumatic Stress Disorder and Acute Stress Disorder: Synopsis of the 2023 U.S. Department of Veterans Affairs and U.S. Department of Defense Clinical Practice Guideline

Author/s: 
Paula P Schnurr, Jessica L Hamblen, Jonathan Wolf, Rachael Coller, Claire Collie, Matthew A Fuller, Paul E Holtzheimer, Ursula Kelly, Ariel J Lang, Kate McGraw, Joshua C Morganstein, Sonya B Norman, Katie Papke, Ismene Petrakis, David Riggs, James A Sall, Brian Shiner, Ilse Wiechers, Marija S Kelber

Description: The U.S. Department of Veterans Affairs (VA) and Department of Defense (DoD) worked together to revise the 2017 VA/DoD Clinical Practice Guideline for the Management of Posttraumatic Stress Disorder and Acute Stress Disorder. This article summarizes the 2023 clinical practice guideline (CPG) and its development process, focusing on assessments and treatments for which evidence was sufficient to support a recommendation for or against.

Methods: Subject experts from both departments developed 12 key questions and reviewed the published literature after a systematic search using the PICOTS (population, intervention, comparator, outcomes, timing of outcomes measurement, and setting) method. The evidence was then evaluated using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) method. Recommendations were made after consensus was reached; they were based on quality and strength of evidence and informed by other factors, including feasibility and patient perspectives. Once the draft was peer reviewed by an external group of experts and their inputs were incorporated, the final document was completed.

Recommendations: The revised CPG includes 34 recommendations in the following 5 topic areas: assessment and diagnosis, prevention, treatment, treatment of nightmares, and treatment of posttraumatic stress disorder (PTSD) with co-occurring conditions. Six recommendations on PTSD treatment were rated as strong. The CPG recommends use of specific manualized psychotherapies over pharmacotherapy; prolonged exposure, cognitive processing therapy, or eye movement desensitization and reprocessing psychotherapy; paroxetine, sertraline, or venlafaxine; and secure video teleconferencing to deliver recommended psychotherapy when that therapy has been validated for use with video teleconferencing or when other options are unavailable. The CPG also recommends against use of benzodiazepines, cannabis, or cannabis-derived products. Providers are encouraged to use this guideline to support evidence-based, patient-centered care and shared decision making to optimize individuals' health outcomes and quality of life.

Keywords 
PTSD veterans Veterans Health Department of Veterans Affairs Department of Defense antidepressants

Management of Posttraumatic Stress Disorder

Author/s: 
Ostacher, Michael J., Cifu, Adam S.

Summary of the Clinical Problem

Individuals who have been personally or indirectly exposed to actual or threatened death, serious injury, or sexual violence have a wide range of psychological responses, from transient, nondebilitating reactions to symptoms that meet the Diagnostic and Statistical Manual of Mental Disorders (Fifth Edition) criteria for acute stress disorder or PTSD. Between 6% and 7% of adults in the US general population are estimated to experience PTSD during their lifetime. The prevalence is higher in women than in men. In 2016, 10.6% of veterans receiving care in the Veterans Health Administration had a diagnosis of PTSD. Among veterans who served in Iraq and/or Afghanistan, 26.7% of those seeking care in the Veterans Health Administration receive a PTSD diagnosis.

Keywords 
post-traumatic stress disorder veterans psychotherapy
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