Table 3 Overview of the GRADE system for grading the quality of evidence: definitions in grading the quality of evidence
Level of evidence | Definition |
|---|---|
High | Further research is not likely to change our confidence in the effect estimate |
Moderate | Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate |
Low | Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate |
Very Low | Any estimate of effect is uncertain |