Defining ranges for certainty ratings of diagnostic accuracy: a GRADE concept paper

OBJECTIVE: The objective of the study was to clarify how the Grading of Recommendations Assessment, Development and Evaluation (GRADE) concept of certainty of evidence applies to certainty ratings of test accuracy. STUDY DESIGN AND SETTING: After initial brainstorming with GRADE Working Group members, we iteratively refined and clarified the approaches for defining ranges when assessing the certainty of evidence for test accuracy within a …