Search strategy
Since there are no guidelines for assessing the prevalence of systematic reviews studies, we followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines24 to conduct and perform this meta-analysis and systematic review. Three medical databases (PubMed, Embase, and Web of Science) were independently searched by two screeners (XSY and NSM) from database inception until January 11, 2022. The details of the search strategy are listed in Supplementary Table 1. The study protocol was registered online at PROSPERO (ID CRD: 42022311156).