Guideline panels should seldom make good practice statements: guidance from the GRADE Working Group

Affiliations

• ¹ Department of Clinical Epidemiology and Biostatistics, McMaster University, 1200 Main Street West, Hamilton, Ontario L8S 4K1, Canada; Department of Medicine, McMaster University, 1200 Main Street West, Hamilton L8S 4K1, Canada. Electronic address: guyatt@mcmaster.ca.
• ² Iberoamerican Cochrane Centre, CIBERESP-IIB Sant Pau, Barcelona, Spain.
• ³ Department of Clinical Epidemiology and Biostatistics, McMaster University, 1200 Main Street West, Hamilton, Ontario L8S 4K1, Canada; Department of Medicine, McMaster University, 1200 Main Street West, Hamilton L8S 4K1, Canada.
• ⁴ Division of Evidence-Based Medicine, Department of Internal Medicine, USF Health Program for Comparative Effectiveness Research, and Health Outcomes Research, H. Lee Moffitt Cancer Center & Research Institute, University of South Florida, Tampa, FL 33612, USA.
• ⁵ AWMF-Institute for Medical Knowledge Management (IMWi), Karl-von-Frisch-Street 1, 35043 Marburg, Germany.
• ⁶ Institute for Quality and Efficiency in Health Care (IQWiG), Im Mediapark 8, D-50670 Cologne, Germany.
• ⁷ Evidence-Based Practice Center, Mayo Clinic, Rochester, MN, USA.
• ⁸ Department of Clinical Epidemiology and Biostatistics, McMaster University, 1200 Main Street West, Hamilton, Ontario L8S 4K1, Canada; Department of Internal Medicine, American University of Beirut, Riad-El-Solh Beirut, 1107 2020 Beirut, Lebanon.