Strong and high-quality evidence synthesis needs Cochrane: a statement of support by the GRADE Guidance Group

Affiliations

• ¹ Department of Health Research Methods, Evidence, and Impact, Hamilton, Ontario, Canada; Michael G. DeGroote, Cochrane Canada & McMaster GRADE Centres, McMaster University, Hamilton, Ontario, Canada; Institute for Evidence in Medicine, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany; Department of Medicine, McMaster University, Hamilton, Ontario, Canada. Electronic address: schuneh@mcmaster.ca.
• ² School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
• ³ Department of Epidemiology Lazio Region, Via Cristoforo Colombo 112, 00147.
• ⁴ Department of Medicine, University of Kansas Medical Center, Kansas City, KS, USA.
• ⁵ Department of Health Research Methods, Evidence, and Impact, Hamilton, Ontario, Canada; Department of Internal Medicine, American University of Beirut Medical Center, P.O.Box 11-0236/CRI (E15), Riad-El-Solh, Beirut 1107 2020, Lebanon.
• ⁶ Michael G. DeGroote, Cochrane Canada & McMaster GRADE Centres, McMaster University, Hamilton, Ontario, Canada; Cochrane Germany, Cochrane Germany Foundation, Freiburg, Germany.
• ⁷ Division for Health Services, Norwegian Institute of Public Health, Oslo, Norway; Institute of Health and Society, University of Oslo, Oslo, Norway.
• ⁸ Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau-CIBERESP), Barcelona 08025, Spain.
• ⁹ Department of Health Research Methods, Evidence, and Impact, Hamilton, Ontario, Canada; Institute for Evidence in Medicine, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany.
• ¹⁰ Department of Epidemiology and Data Science, Amsterdam UMC, University of Amsterdam, Amsterdam Public Health institute, Amsterdam, The Netherlands.
• ¹¹ Department of Urology, University of Minnesota, Minneapolis VA Health Care System, Minneapolis, MN, USA.