Table 1 Level of quality of evidence according to GRADE [26]
GRADE Score | Quality | Interpretation |
|---|---|---|
≤ 1 | Very low | Any estimation of effect is highly uncertain |
2 | Low | Further research is likely to have a significant impact on our confidence in the estimated treatment effect and may change the estimate |
3 | Moderate | Further research is likely to have a significant impact on our confidence in the estimated treatment effect and may change the estimate |
≥ 4 | High | It is very unlikely that further research will alter our confidence in the estimated treatment effect |