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Systems for grading the quality of evidence and the strength of recommendations I: Critical appraisal of existing approaches The GRADE Working Group

David Atkins1 email, Martin Eccles2 email, Signe Flottorp3 email, Gordon H Guyatt4 email, David Henry5 email, Suzanne Hill5 email, Alessandro Liberati6 email, Dianne O'Connell7 email, Andrew D Oxman3 email, Bob Phillips8 email, Holger Schünemann4,9 email, Tessa Tan-Torres Edejer10 email, Gunn E Vist3 email, John W Williams Jr11 email and The GRADE Working Group3 email

1Center for Practice and Technology Assessment, Agency for Healthcare Research and Quality, 540 Gaither Rd. Rokville, MD 20852, USA

2Centre for Health Services Research, University of Newcastle upon Tyne, 21 Claremont Place, Newcastle upon Tyne NE2 4AA, UK

3Informed Choice Research Department, Norwegian Health Services Research Centre, Pb. 7004 St. Olavs Plass, 0130 Oslo, Norway

4Departments of Clinical Epidemiology and Biostatistics and Medicine, McMaster University, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada

5Department of Clinical Pharmacology, Faculty of Medicine and Health Sciences, University of Newcastle, Level 5, New Med 2 Building, Newcastle Mater Hospital, Waratah, NSW 2298, Australia

6Department of Oncology and Hematology, Università di Modena e Reggio Emilia, Azienda Ospedaliera Policlinico, Via dal Pozzo 41, 41100 Modena, Italia and Centro per la Valutazione della Efficacia della Assistenza Sanitaria (CeVEAS), Modena, Italy

7Cancer Epidemiology Research Unit, Cancer Research and Registers Division, The Cancer Council NSW, PO Box 572, Kings Cross NSW 1340, Australia

8Centre for Evidence-based Medicine, University Department of Psychiatry, Warneford Hospital, Oxford OX3 7JX, UK

9Departments of Medicine and Social & Preventive Medicine, University at Buffalo, State University of New York, ECMC-CC142, 462 Grinder St, Buffalo, NY 14215, USA

10Global Programme on Evidence for Health Policy, World Health Organisation, CH-1211 Geneva 27, Switzerland

11The Center for Health Services Research in Primary Care, HSR&D, Department of Veterans Affairs Medical Center and Duke University Medical Center, 508 Fulton St., Durham, NC 27705, USA

author email corresponding author email

BMC Health Services Research 2004, 4:38doi:10.1186/1472-6963-4-38

Published: 22 December 2004

Additional files

Additional File 1:

American College of Chest Physicians (ACCP), a brief description of the ACCP approach.

Format: DOC Size: 49KB Download file

This file can be viewed with: Microsoft Word Viewer

Additional File 2:

Australian National Health and Medical Research Council (ANHMRC), a brief description of the ANHMRC approach.

Format: DOC Size: 38KB Download file

This file can be viewed with: Microsoft Word Viewer

Additional File 3:

Oxford Centre for Evidence-based Medicine (OCEBM), a brief description of the OCEBM approach.

Format: DOC Size: 73KB Download file

This file can be viewed with: Microsoft Word Viewer

Additional File 4:

Scottish Intercollegiate Guidelines (SIGN), a brief description of the SIGN approach.

Format: DOC Size: 27KB Download file

This file can be viewed with: Microsoft Word Viewer

Additional File 5:

U.S. Preventive Services Task Force (USPSTF), a brief description of the USPSTF approach.

Format: DOC Size: 51KB Download file

This file can be viewed with: Microsoft Word Viewer

Additional File 6:

U.S. Task Force on Community Preventive Services (USTFCPS), a brief description of the USTFCPS approach.

Format: DOC Size: 82KB Download file

This file can be viewed with: Microsoft Word Viewer


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