ArticleAnaesthesia2021
Hundreds of thousands of zombie randomised trials circulate among us.
Article in Anaesthesia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
21 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Drug treatments for fibromyalgia: systematic review and network meta-analysis of randomised trials.BMJ medicine · 2026Pooled it
- Interventions for the management of long covid (post-covid condition): living systematic review.BMJ (Clinical research ed.) · 2024Pooled it
- Assessment of COVID-19-related meta-analysis reporting quality.Irish journal of medical science · 2022Pooled it
- Retracted Randomized Clinical Trials From Superretractors and Top-Cited Scientists With Multiple Retractions.JAMA network open · 2026Article
- Impact of a Research Integrity Assessment (RIA) of Randomized Controlled Trials Included in Interventional COVID-19 Systematic Reviews: A Meta-Epidemiological Study.Cochrane evidence synthesis and methods · 2026Article
- Individual participant data meta-analysis tips and tricks: troubleshooting commonly encountered issues of contacting trialists for individual participant data.JBI evidence synthesis · 2026Article
- Unusual outcome variances as a method to identify potentially problematic clinical trials.PloS one · 2026Article
- Publishers' Response to Post-Publication Concerns About Clinical Research in Women's Health.BJOG : an international journal of obstetrics and gynaecology · 2025Article
- CONSORT 2025 explanation and elaboration: updated guideline for reporting randomised trials.BMJ (Clinical research ed.) · 2025Article
- Article
- Artificial intelligence in food and nutrition evidence: The challenges and opportunities.PNAS nexus · 2024Article
- Appraisal of umbrella reviews on vaccines.Communications medicine · 2024Review
- Transparency, bias, and reproducibility across science: a meta-research view.The Journal of clinical investigation · 2024Article
- Research Integrity in Guidelines and evIDence synthesis (RIGID): a framework for assessing research integrity in guideline development and evidence synthesis.EClinicalMedicine · 2024Article
- Quantitative research assessment: using metrics against gamed metrics.Internal and emergency medicine · 2024Review
- Checklist to assess Trustworthiness in RAndomised Controlled Trials (TRACT checklist): concept proposal and pilot.Research integrity and peer review · 2023Article
- Assessing the Integrity of Clinical Trials Included in Evidence Syntheses.International journal of environmental research and public health · 2023Review
- Identifying and managing problematic trials: A research integrity assessment tool for randomized controlled trials in evidence synthesis.Research synthesis methods · 2023Article
- Choosing Wisely in clinical practice: Embracing critical thinking, striving for safer care.Journal of internal medicine · 2022Review
- Challenges and Lessons Learned From COVID-19 Trials: Should We Be Doing Clinical Trials Differently?The Canadian journal of cardiology · 2021Review
Corrections and comments
- Comment on
Authors and funding
1 author.
Funding
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
33124075What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.