Table 5 Risk of bias included in SRs/MAs by ROBIS
Phase | Production process | Yang AL 2018 [29] | Wu JH 2019 [8] | Liu SY 2018 [6] | Lv YH 2015 [30] | Li Y 2016 [31] | Zhang HB 2019 [7] |
|---|---|---|---|---|---|---|---|
Phase1 | Study eligibility criteria | Low Risk | Low Risk | Low Risk | Low Risk | Low Risk | Low Risk |
Phase 2 | â‘ Identification and selection of studies | Low Risk | Low Risk | Low Risk | Low Risk | Low Risk | Low Risk |
â‘¡Data collection and study appraisal | HIgh Risk | HIgh Risk | Low Risk | unclear risk | Low Risk | Low Risk | |
â‘¢Data extraction and quality evaluation | HIgh Risk | HIgh Risk | Low Risk | Low Risk | Low Risk | Low Risk | |
â‘£Data synthesis and result presentation | HIgh Risk | Low Risk | Low Risk | HIgh Risk | Low Risk | Low Risk | |
Phase 3 | Risk of bias in the review | HIgh Risk | Low Risk | Low Risk | HIgh Risk | HIgh Risk | Low Risk |