Title: Irregular Diet & Esophageal Cancer Risk Meta-Analysis
📈 Summary RR: 4.181 (CI 2.196–7.960)
🧐 High heterogeneity: 66.1%
🗺️ Asia: significant influence
📚 Data from 5 cohort + 1 case-control study
#CancerResearch #MetaAnalysis #DietaryImpact #ScientificFindings #Pub2Post https://tnyp.me/gQApwmOQ/m
#statstab #473 Synthesis without meta-analysis (SWiM) in systematic reviews
Thoughts: An interesting proposition for when you don't have good data for a meta-analysis.
Thrilled to announce that @shreyadimri and I will be part of #LoveMethods26! 🎉
We'll be running a session on "How to avoid common problems when doing a #systematicReview and #MetaAnalysis", sharing practical tips for conducting reproducible & transparent evidence syntheses
Love Methods Week (January 19–23, 2026) is a FREE online event where researchers come together to learn & share open, reusable methods. There's something for everyone!
👉 Full details & registration: https://excelscior.uc.pt/love-methods-week-2026/
🤔 Estimation of between-study variability (heterogeneity) is tricky when only few studies are available.
❓ Can we make use of additional information, by considering subgroups within studies?
💡 It turns out we can -- yielding better performance due to fewer zero-estimates and more degrees-of-freedom.
👉 See here: https://arxiv.org/abs/2511.15366
(Joint work with Ao Huang and @friede1 )
https://psychedelicmentalhealth.net/intravenous-ketamine-versus-esketamine-for-depression-a-systematic-review-and-meta-analysis-elmosalamy-et-al-2025/ "Based on the currently available comparative evidence, which is almost entirely observational, IV ketamine and IN esketamine show comparable acute response and remission rates, though IV ketamine may act faster. Large head-to-head RCTs are needed to confirm these findings." (Salamy, 2025) #ketamine #psychedelicresearch #ketaminetherapy #mentalhealth #depression #neuroscience #metaanalysis
#statstab #452 Assumption Checking Prevents Assumption Hacking in Multiverse Meta-Analyses
Thoughts: Heterogeneity, publication bias, multiverse analysis, z-curve and more.
#zcurve #multiverse #heterogeneity #metaanalysis #bias #publicationbias
#statstab #448 {metaforest} Small sample meta-analysis
Thoughts: "a machine-learning based, exploratory approach to identify relevant moderators in meta-analysis"
#ML #MachineLearning #metaanalysis #smallsample #samplesize #heterogeneity #moderator
https://cjvanlissa.github.io/metaforest/articles/Introduction_to_metaforest.html
#statstab #448 {metaforest} Small sample meta-analysis
Thoughts: "a machine-learning based, exploratory approach to identify relevant moderators in meta-analysis"
#ML #MachineLearning #metaanalysis #smallsample #samplesize #heterogeneity #moderator
https://cjvanlissa.github.io/metaforest/articles/Introduction_to_metaforest.html
New meta-analysis out on the role of sexual selection in speciation!
Across the Animal kingdom, we found that stronger sexual selection is significantly (though weakly) associated with greater species richness in comparative studies — suggesting a modest role for sexual selection in speciation.
A great collaboration with Tim Janicke, Jeanne Tonnabel, Tamra Mendelson & Mike Ritchie.
#MetaAnalysis: In the face of the #climate crisis, food production is a significant contributor to GHG #emissions. An analysis of 118 life-cycle assessments shows that red #meat is consistently the highest-impact food group, and fruits & #vegetables the lowest: doi.org/10.1038/s415... #LCA
Carbon footprint of food produ...
#MetaAnalysis with a total of 1.2 m participants finds adherence to #plantbased dietary patterns, esp. those rich in healthy plant foods—like fruits, #vegetables, whole grains, #legumes & nuts—may be beneficial for reducing the risk of colorectal cancer: doi.org/10.1016/j.ga... #cancer #health
Redirecting
#statstab #426 Execution of Replications
Thoughts: A good resource for conducting replications. Different ways to plan your sample size and consider "success/failure".
#replication #OpenScience #metaanalysis #samplesize #sesoi #smalltelescope
https://forrt.org/replication_handbook/execution_replications.html
I am currently conducting my very first #metaanalysis (on the psycholinguistic effect of #genderfair writing). First pleasant surprise: on the 14 studies selected to be included in the meta-analysis, we were able to obtain the raw data for 13 (either because the data was #OpenAccess or provided by the authors upon request). Second pleasant surprise: the funnel plot shows no indication of publication bias, results are symmetrically distributed, with as many studies underestimating the effect as overestimating it..
#MetaAnalysis: Adherence to the mostly #plantbased EAT-Lancet diet is linked to reduced #cancer incidence & mortality. These findings underscore the clinical importance & potential #health benefits of adopting this dietary pattern to improve patients' quality of life: doi.org/10.1093/nutr... #diets
The Association between Adhere...
Busy week, I have not much posted from #RSS2025. This will follow in the next days.
For now, I enjoyed chatting with Robert Grant and am reading his co-authored book "Bayesian #MetaAnalysis" which he kindly gave me a copy of 🙇
http://www.robertgrantstats.co.uk/bma-book.html
I am always looking combinations of unusual and cross-cutting themes for teaching/ training, so I'll do a parallel read with #MixtureModels in this area: https://link.springer.com/chapter/10.1007/978-3-540-68651-4_7
'The Impact of Inflammatory Biomarker Subphenotypes on Acute Respiratory Distress Syndrome Prognosis: A Systematic Review and Meta-analysis' - a #JaypeeJournals 'Preventive and Emergency Medicine Insights' publication on #ScienceOpen:
📄🔓 https://www.scienceopen.com/document?vid=fe09a282-d22d-432e-b780-8f75f3ec150f
#ARDSSubphenotypes #BiomarkerDrivenCare #CriticalCare #MetaAnalysis
Meta-analyses comparing treatment effects in patient subgroups (e.g. males vs. females) may be tricky, and may in fact sometimes suggest contradictory findings. Renato Panaro (@panaro) looked at the mechanisms at work, and also suggests a possible solution:
👉 https://arxiv.org/abs/2508.15531
(joint work with @friede1).
Esta es una biblioteca con bibliografía de interés para el proyecto #BIOmetaAnalysis en @zotero
Tiene bibliografía sobre los distintos enfoques que se han usado para los #MetaAnalysis
https://www.zotero.org/groups/6101018/biometaanalisis/item-list
@malu_vel podemos hacer un bot con @birb para esta biblioteca #BIOrss
Registration is still possible for the GMDS ACADEMY 2025 (Hannover, October 20-23).
There will be three parallel workshops on meta analysis, causal inference and time-to-event analysis involving Wolfgang Viechtbauer (@wviechtb), Christian Röver, Sebastian Weber, Vanessa Didelez, Arthur Allignol, Oliver Kuß, Alexandra Strobel, Hannes Buchner, Xiaofei Liu and Ann-Kathrin Ozga.
See here for more details:
👉 https://www.gmds.de/fileadmin/user_upload/GMDS-Academy-2025.pdf
