GRADE: An Emerging Consensus on Rating Quality of Evidence and Strength of Recommendations
Brit Med J 2008 (Apr 26); 336 (7650): 924–926 ~ FULL TEXT
Gordon H Guyatt, Andrew D Oxman, Gunn E Vist,
Regina Kunz, Yngve Falck-Ytter
G H Guyatt
CLARITY Research Group,
Department of Clinical Epidemiology and Biostatistics,
Room 2C12, 1200 Main Street,
West Hamilton, ON, Canada L8N 3Z5
Guidelines are inconsistent in how they rate the quality of evidence and the strength of recommendations. This article explores the advantages of the GRADE system, which is increasingly being adopted by organisations worldwide.
From the FULL TEXT Article
| Summary points |
Guideline developers around the world are inconsistent in how they rate quality of evidence and grade strength of recommendations. As a result, guideline users face challenges in understanding the messages that grading systems try to communicate. Since 2006 the BMJ has requested in its “Instructions to Authors” on bmj.com that authors should preferably use the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system for grading evidence when submitting a clinical guidelines article. What was behind this decision?
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In this first in a series of five articles we will explain why many organisations use formal systems to grade evidence and recommendations and why this is important for clinicians; we will focus on the GRADE approach to recommendations. In the next two articles we will examine how the GRADE system categorises quality of evidence and strength of recommendations. The final two articles will focus on recommendations for diagnostic tests and GRADE’s framework for tackling the impact of interventions on use of resources.
GRADE has advantages over previous rating systems (box 1). Other systems share some of these advantages, but none, other than GRADE, combines them all.