Table 1 Evidence grading and recommendations formulation
Recommendations formulation according to GRADE | ||
|---|---|---|
High level of evidence | Strong recommendation «should be…» | Grade 1+ |
Intermediate to low level of evidence | Optional recommendation «should probably…» | Grade 2+ |
No or insufficient available data | Expert opinion «the experts recommend…» | Expert opinion |
Intermediate to low level of evidence | Optional recommendation «should probably not…» | Grade 2− |
High level of evidence | Strong recommendation «should not be…» | Grade 1− |