Aprepitant (NK1), ramosetron (5HT3), granisetron (5HT3), ondanestron (5HT3) & dexamethasone (steroid) all significantly reduce postoperative nausea & vomiting when used as prophylaxis with a high evidence certainty.
- Weibel 2021 Anaesthesia #metaanalysis
→ https://metajournal.com/33170514
Although methods for meta-analyzing differences in variance between groups have been available for several years (e.g., https://doi.org/10.1111/jeb.13661), researchers still seem reluctant to adopt them widely.
Here we show an easier alternative to meta-analyze variances across species. #metaanalysis
In our latest preprint, we showcase how to use a phylogenetic meta-analysis of variance to test evolutionary hypotheses across species.
We collected data for 172 birds (314 populations) to test patterns of stabilising selection and canalisation for wing length.
Red attire's competitive edge has faded in combat sports, new study finds
https://phys.org/news/2025-01-red-attire-competitive-edge-combat.html
Nearly 90% of educators support matching instruction to students' learning styles, but researchers are skeptical. New analysis by an educational scholar sheds light on this contentious topic in #education. https://theconversation.com/heres-what-happens-when-teachers-tailor-their-lessons-to-students-individual-learning-styles-242075 #k12 #edtech #openeducation #quantresearch #metaanalysis
I have great respect for our colleagues who carry on with research and extension even in the most challenging conditions. As an example, here's a recent paper including "list of measures to reduce the level of light pollution carried out in #Ukraine".
Our meta-analysis on the impact of neonicotinoids on birds is out at Ecology Letters: https://onlinelibrary.wiley.com/doi/full/10.1111/ele.14534
A massive effort by my co-authors putting together such a comprehensive dataset (1612 effect sizes from 49 studies). The results unfortunately show consistent negative effects of neonicotinoid exposure on bird health, behaviour, reproduction, and survival and might be a contributing factor to the extensive bird declines globally.
#MetaAnalysis question - help much appreciated!
The Cochrane manual says that for metaregression sample size, "at least ten observations (i.e. ten studies in a meta-analysis) should be available for each characteristic modelled".
Let's say you wanted to conduct a meta-regression for a categorical variable, for which all studies are coded either X or Y. Is the minimum number of studies needed:
A) 10 in total
B) At least 10 studies coded X or Y (whichever is least frequent)
Many thanks!
... #LogicModels and tools like this into #RCT development in educational research, the dependency of effect sizes on control groups seems less discussed (or I still have not found the correct key words to find the underpinning literature).
...into the wider picture shown by #MetaAnalysis projects focusing on exactly this area such as ES=0.04
(n=133 effect sizes in https://educationendowmentfoundation.org.uk/projects-and-evaluation/evaluation/eef-evaluation-reports-and-research-papers/syntheses-of-eef-evaluations/review-of-eef-projects)
or ES=0.06 (n=267 in https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3532325).
And there are good discussions for reasons for the small effect sizes.
Last week 6 new papers were published Quality of Life Research:
https://link.springer.com/journal/11136/articles,
e.g., #HRQL & cancer screening in HPV vaccinated women
https://link.springer.com/article/10.1007/s11136-023-03575-y
Evaluation of missingness patters in data from advanced-stage cancer patients
https://rdcu.be/dwxKr
#NMAR
#MetaAnalysis suggesting baseline functioning scales predict overall survival in patients with gastrointestinal cancer
https://rdcu.be/dwxKI
Quality of life as an outcome of psychological treatments in people living w schizophrenia-spectrum disorders:
#MetaAnalysis of 60 independent #RCTs, analysing associations btw treatments (psychoeducation, CBT, cognitive, ...) and QOL (QLS, #WHOQOL, MANSA):
https://www.cambridge.org/core/journals/psychological-medicine/article/which-psychological-interventions-improve-quality-of-life-in-patients-with-schizophreniaspectrum-disorders-a-metaanalysis-of-randomized-controlled-trials/BC266982A851D9B22CB69782578D59FA
It covers subjective (k=45) and objective (k=15) QOL outcomes
#HRQL #BeyondWilsonCleary
Interestingly, the latter were more frequently considered as #PrimaryOutcome-s in the analysed studies.
“I was really surprised that the Cochrane group let this go through…” | The new scientific review on masks and COVID isn’t what you think - Vox https://apple.news/A9Yaqz5L7TiCL9g4jsCNvQQ. #covid #masks #MetaAnalysis #WheatFromChaff
Love the idea of #Introduction posts!
Hi I'm David, a #statistician & #methodologist at #UCL, working in #ClinicalTrials and #MetaAnalysis (MA), particularly in #oncology & with #survival data. I've been involved in large-scale #RCTs, meta-analysis of #COVID19 data on behalf of #WHO, and currently working with large-scale #IPDMA in #prostateCancer. Main methodological interest is treatment interactions with observed patient #subgroups in MA. I also write & maintain #Stata packages.
Changed server so forgive me for another #introduction: I grew up in Northern Ontario (Sudbury) and worked in a nickel smelter and copper refinery during college, now I’m a prof in #ecology, #evolution, #metaAnalysis, #entomology, #parasitology in #Tampa #Florida (University of South Florida)
I love #Rstats #statistics #datascience #math #dataviz, I’m always looking for new graduate #students, and I sometimes post videos on #YouTube
Cheers friends!
#Introduction time
Hi everyone !
I'm Léa (she/her), postdoc in #Ecology at CNRS/University of Toulouse, France.
I'm interested in #SoilBiodiversity and #EcosystemFunctioning and the impacts of #GlobalChange such as #pollution.
Currently I study how a top predator (lizard) modulates the impacts of #climatechange on #belowground and #aboveground communities in a long term exciting experiment.
I mostly do #rstats now and am big fan of #metaanalysis and data synthesis in general.
