| Evidence classification method： |
For the evidence that can be systematically evaluated, the quality of evidence is evaluated based on the grade system, which mainly considers five degradation factors (bias risk, indirection, heterogeneity, imprecision and publication bias) and three upgrading factors (large effect, dose effect relationship and negative bias). The final quality of evidence is divided into four levels: high, medium, low and very low; Recommendation intensity is divided into strong recommendation and weak recommendation. For the evidence lacking of clinical research support, the quality of evidence is evaluated based on the Classification Standard of Evidence in Ancient Books of Traditional Chinese Medicine. According to the Classification Standard of Evidence in Ancient Books of Traditional Chinese Medicine, the evidence is scored. The recommendation intensity is divided into four levels: strong recommendation, weak recommendation, no recommendation and no recommendation. |
