Core outcome set developers should consider and specify the level of granularity of outcome domains

Affiliations

• ¹ Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany. Electronic address: jan.kottner@charite.de.
• ² Institute for Work & Health, Toronto, Ontario, Canada.
• ³ Northern Ireland Methodology Hub, Queen's University Belfast, Belfast, UK.
• ⁴ Department of Health Data Science, University of Liverpool, Liverpool, UK.
• ⁵ Centre for Biostatistics, The University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
• ⁶ Center for Evidence-Based Healthcare, Medical Faculty and University Hospital Carl Gustav Carus, TUD Dresden University of Technology, Fetscherstraße 74, 01307 Dresden, Germany.
• ⁷ Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
• ⁸ Department of Medicine, University of Ottawa, Ottawa Hospital Research Institute, Bruyere Research Institute, Ottawa, Ontario, Canada.