Table 4.
Level of evidence (GRADE) | Recommendation for/against | Recommendation level |
---|---|---|
1 | ‘should’, ‘should not’, or ‘is not indicated’ | A |
2 | ‘may’/‘suggest’ or ‘may not’/‘not suggest’ | B |
3 or 4 | ‘may be considered’ or ‘do not know’ | 0 |
Levels of evidence for recommendations are based on the analysis of the literature and transferred into detailed wording in the clinical recommendations with defined levels of recommendations.