Evidence Quality Assessment of Tai Chi Exercise Intervention in Cognitive Impairment: An Overview of Systematic Review and Meta-Analysis

Table 4

Results of the ROBIS assessments.

Author, year (country)	Phase 1	Phase 2				Phase 3
	Assessing relevance	Domain 1: study eligibility criteria	Domain 2: identification and selection of studies	Domain 3: collection and study appraisal	Domain 4: synthesis and findings	Risk of bias in the review
Liu et al., 2021 (China) [27]	√	√	√	√	×	√
Yang et al., 2020 (China) [28]	√	√	√	√	×	√
Gu et al., 2021 (China) [29]	√	√	×	×	×	√
Lin et al., 2021 (China) [30]	√	√	√	×	×	√
Cai et al., 2020 (China) [31]	√	√	√	√	×	√
Li et al., 2021 (China) [32]	√	√	×	√	×	√
Zhang et al., 2017 (China) [33]	√	√	×	√	×	×
Zhang et al., 2020 (China) [34]	√	√	√	√	×	√

Note: √, low risk; ×, high risk.