Participant and trial characteristics reported in predictive analyses of trial attrition : an umbrella review of systematic reviews of randomised controlled trials across multiple conditions

McChrystal, RyanLees, JenniferGillies, KatieMcAllister, DavidHanlon, Peter2025-09-092025-03-12McChrystal, R, Lees, J, Gillies, K, McAllister, D & Hanlon, P 2025, 'Participant and trial characteristics reported in predictive analyses of trial attrition : an umbrella review of systematic reviews of randomised controlled trials across multiple conditions', Trials, vol. 26, 84. https://doi.org/10.1186/s13063-025-08794-x1745-6215RIS: urn:FAD38793820C806483BD6AB5A6E51811RIS: McChrystal2025ORCID: /0000-0001-7890-2854/work/190938306https://hdl.handle.net/2164/25958We acknowledge Dr Paul Cannon at the University of Glasgow Library for helping in developing the search strategy. We acknowledge Mrs Anna Kearney at the Institute of Population Health, University of Liverpool for providing guidance on using the ORCCA database.184535994engattritiondropoutretentionrandomisedRCTsFactorsParticipantTrialCharacteristicsRandomisedRetentionAttritionDropoutAge FactorsHumansRandomized Controlled Trials as Topic/methodsMalePatient DropoutsSystematic Reviews as TopicFemaleResearch Subjects/psychologyResearch DesignR Medicine (General)Medicine (miscellaneous)Pharmacology (medical)Supplementary DataDASR1Participant and trial characteristics reported in predictive analyses of trial attrition : an umbrella review of systematic reviews of randomised controlled trials across multiple conditionsJournal article10.1186/s13063-025-08794-xhttp://www.scopus.com/inward/record.url?scp=105000078318&partnerID=8YFLogxKhttps://github.com/RMcCPhD/umbrella_review26