Research Methods & Reporting BMJ 2026; 393 doi: https://doi.org/10.1136/bmj-2024-083075 Cite this as: BMJ 2026;393:e083075 Areti Angeliki Veroniki, associate professor, Dianna M Wolfe, senior clinical research associate, Brian Hutton, senior scientist, Guido Schwarzer, senior statistician, Daniel I McIsaac, anaesthesiologist, Sharon E Straus, director, professor, and geriatrician, Dan Jackson, director, Andrea C Tricco, scientist and profesor Author affiliations Correspondence to: A A...