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meta-analysis
Facts (32)
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Efficacy of Cognitive Behavioral Therapy for Anxiety-Related Disorders link.springer.com Dec 19, 2022 13 facts
claimPsychological placebos in the context of this meta-analysis are defined as nondirective and nonspecific psychological interventions, which include the discussion and interaction of a patient's problems with a therapist.
claimThe meta-analysis excluded 'third-wave' interventions, such as acceptance and commitment therapy and mindfulness-based interventions, because these treatments involve exercises that go beyond the core CBT strategies of cognitive restructuring and exposure.
procedureSensitivity analyses were conducted by excluding potential outliers, defined as studies for which the 95% confidence interval of the effect sizes did not overlap with the 95% confidence interval of the pooled effect sizes, and then recalculating the effect size.
procedureThe meta-analysis excluded studies where active placebo interventions targeted problems such as self-guided exposures.
procedureThe researchers extracted data on study characteristics (sample size, placebo type, publication year, analysis type), intervention characteristics (CBT type, format, number of sessions), participant demographics, and post-intervention/follow-up outcomes for anxiety, depression, and quality of life.
referenceSidik and Jonkman published 'Simple heterogeneity variance estimation for meta-analysis' in the Journal of the Royal Statistical Society Series C (Applied Statistics) in 2005.
procedureThe meta-analysis excluded studies where the intervention was delivered fully or in part by computerized or internet-based programs, rather than by a therapist.
procedureThe pooled effect size was calculated by combining effect sizes from individual studies through random effects models using the Hartung-Knapp-Sidik-Jonkman (HKSJ) adjustment.
procedureThe meta-analysis excluded studies that consisted of secondary analyses of previously published datasets.
referenceBalduzzi, Rücker, and Schwarzer published a practical tutorial titled 'How to perform a meta-analysis with R' in Evidence-Based Mental Health in 2019.
procedureThe meta-analysis excluded studies where patients had medical comorbidities such as substance abuse or other medical conditions.
referenceStraud et al. (2019) published a meta-analysis in the Journal of Anxiety Disorders examining military population and trauma type as moderators of treatment outcome for first-line psychotherapies for PTSD.
procedureTo be included in the meta-analysis, studies had to meet four criteria: (1) patients were aged 18 to 65 and met DSM-III-R, DSM-IV, or DSM-5 diagnostic criteria for specific anxiety-related disorders; (2) patients were randomly assigned to either CBT or a placebo (pill or psychological); (3) anxiety symptom severity was assessed via a validated clinical interview or self-report instrument pre- and post-treatment; and (4) studies provided sufficient data to calculate effect sizes.
Health and environmental impacts of diets worldwide globalnutritionreport.org 6 facts
referenceThe study 'Nut consumption and risk of cardiovascular disease, total cancer, all-cause and cause-specific mortality: a systematic review and dose-response meta-analysis of prospective studies' by Aune D, Keum N, Giovannucci E, et al. was published in BMC Medicine in 2016 (14: 207).
referenceThe study 'Whole grain consumption and risk of cardiovascular disease, cancer, and all cause and cause specific mortality: systematic review and dose-response meta-analysis of prospective studies' by Aune D, Keum N, Giovannucci E, et al. was published in the BMJ in 2016 (353: i2716).
referenceThe dose-response meta-analysis 'Fish consumption and risk of all-cause and cardiovascular mortality: a dose-response meta-analysis of prospective observational studies' was published in Public Health Nutrition in 2018 (21: 1297–306).
referenceThe study 'Body-mass index and all-cause mortality: individual-participant-data meta-analysis of 239 prospective studies in four continents' by Di Angelantonio E, Bhupathiraju S, et al. was published in The Lancet in 2016 (388: 776–86).
referenceThe meta-analysis 'Fish consumption and all-cause mortality: a meta-analysis of cohort studies' was published in the European Journal of Clinical Nutrition in 2016 (70: 155–61).
referenceThe study 'Fruit and vegetable intake and the risk of cardiovascular disease, total cancer and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies' by Aune D, Giovannucci E, Boffetta P, et al. was published in the International Journal of Epidemiology in 2016.
Effects of psychedelics on neurogenesis and broader neuroplasticity link.springer.com Dec 19, 2024 2 facts
procedureThe authors utilized the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines to standardize their review workflow, as established by Liberati et al. (2009).
referenceMoulin and Amaral (2020) published a study in Research Synthesis Methods proposing the use of collaboration networks to identify authorship dependence in meta-analysis results.
A Scoping Review of Indicators for Sustainable Healthy Diets frontiersin.org Jan 12, 2022 2 facts
A systematic review of cognitive behavioral therapy-based ... frontiersin.org 2 facts
claimThe systematic review could not compute a meta-analysis due to the heterogeneity of available data in the included studies, specifically regarding mode of delivery, number of sessions, intervention components, and therapist characteristics.
referenceTo ensure comprehensive inclusion of eligible studies, the authors consulted the reference lists of published narrative reviews, systematic reviews, meta-analyses, and grey literature found via Google Scholar, including works by Buhrman et al. (2016), Hilton et al. (2017), Ahern et al. (2018), Haugmark et al. (2019), Khoo et al. (2019), López-López et al. (2019), Williams et al. (2020), Fordham et al. (2021), Pardos-Gascón et al. (2021), and White et al. (2022).
Global overview of dietary outcomes and dietary intake assessment ... link.springer.com Aug 21, 2021 2 facts
referenceShamseer L., Moher D., Clarke M., Ghersi D., Liberati A., Petticrew M., et al. authored 'Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) 2015: elaboration and explanation', published in the BMJ in 2015, volume 349, article g7647.
claimThe systematic review authors could not perform a meta-analysis due to the heterogeneity of the included studies regarding participants, study methods, and outcome measurements.
Effective Anxiety Management: Evidence-Based Approaches reachlink.com Nov 29, 2025 1 fact
measurementA 2020 meta-analysis reported that Acceptance and commitment therapy (ACT) showed substantial benefits compared to waitlists, placebos, and other forms of therapy.
The Montreal model: an integrative biomedical-psychedelic ... frontiersin.org 1 fact
measurementPsychotherapy "booster" sessions, when conducted at a frequency of roughly every 3–6 months, have been shown in meta-analysis to successfully maintain the psychological benefits of therapy.
Track: Poster Session 3 - aistats 2026 virtual.aistats.org 1 fact
claimRemi Khellaf, Aurélien Bellet, and Julie Josse compare three classes of Average Treatment Effect (ATE) estimators derived from the Plug-in G-Formula: simple meta-analysis, one-shot federated learning, and multi-shot federated learning.
Peer-Reviewed Papers - The Levin Lab drmichaellevin.org 1 fact
referenceP. Srivastava, A. Kane, C. Harrison, and Michael Levin published 'A Meta-Analysis of Bioelectric Data in Cancer, Embryogenesis, and Regeneration' in the journal Bioelectricity in 2021, providing a meta-analysis of bioelectric data across these three domains.
Construction of Knowledge Graphs: State and Challenges - arXiv arxiv.org 1 fact
referenceSteenwinckel et al. developed a literature knowledge graph to facilitate COVID-19 meta-analysis, as presented at the 19th International Semantic Web Conference (ISWC) in 2020.