[Systematic review and meta-analysis of acupuncture and moxibustion: existing problems and countermeasures]

There are some common problems in the systematic review and meta-analysis on acupuncture-moxibustion, e.g. indistinct definition and errors in methodology. In order to further improve the quality of relevant literature, in association with the characteristics of acupuncture-moxibustion, based on the framework of PICOS (P: population, I: interventions, C: comparisons, O: outcomes, S: study designs), the paper explores how to construct specific research questions. In methodology, the paper analyzes the common problems from five aspects, including literature retrieval, bias assessment, analysis and interpretation of results, selection of other types of meta-analysis and the update of methodology. Based on the analysis above, the paper discusses the corresponding countermeasures.