TABLE 2.
Definition of grades of recommendation 29
| A | At least one meta‐analysis, systematic review, or RCT 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 |
| B | A body of evidence including studies rated as 2++, directly applicable to the target population; or A body of evidence including studies rated as 2+, directly applicable to the target population and demonstrating overall consistency of results; or and demonstrating overall consistency of results; or Extrapolated evidence from studies rated as 1++ or 1+ |
| 0 | Evidence level 3 or 4; or Extrapolated evidence from studies rated as 2++ or 2+ |
| GPP | Good practice points/expert consensus: Recommended best practice based on the clinical experience of the guideline development group |