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Table 2 Definition of NHMRC grades of recommendations

From: FORM: An Australian method for formulating and grading recommendations in evidence-based clinical guidelines

Grade of recommendation

Description

A

Body of evidence can be trusted to guide practice

B

Body of evidence can be trusted to guide practice in most situations

C

Body of evidence provides some support for recommendation(s) but care should be taken in its application

D

Body of evidence is weak and recommendation must be applied with caution