Table 3 GRADE categories of the quality of evidence
Level of evidence | Rationale |
|---|---|
High | Further research is very unlikely to change our confidence in the estimate of effect. |
Moderate | Further research is likely to have an important impact on our confidence in the effect. |
Low | Further research is very likely to have an estimate of effect and is likely to change the estimate. |
Very low | Any estimate of effect is very uncertain. |