Table 3

Scottish Intercollegiate Guidelines Network: modified grades of recommendation55

GradeCriteria
AAt least one meta-analysis, systematic review or randomised controlled trial rated as 1++ and directly applicable to the target population; or
A body of evidence consisting principally of studies rated as 1+, directly applicable to the target population and demonstrating overall consistency of results
BA body of evidence including studies rated as 2++, directly applicable to the target population, and demonstrating overall consistency of results; or
Extrapolated evidence from studies rated as 1++ or 1+
CA body of evidence including studies rated as 2+, directly applicable to the target population and demonstrating overall consistency of results; or
Extrapolated evidence from studies rated as 2++
DEvidence level 3 or 4; or
Extrapolated evidence from studies rated as 2+
Good practice pointRecommended best practice based on the clinical experience of the pathway working group
Clinical practice guidelineEvidence included from recommendations listed in appraised clinical guidelines, position papers and expert consensus statements