Table 8. Showing the quality appraisal of systematic reviews using the Amstar checklist.

Y: yes, N: no

Study Characteristic	Su et al., 2022 [43]	Wei et al., 2019 [44]	Żyluk et al., [45]
Was an 'a priori' design provided?	Y	Y	N
Was there duplicate study selection and data extraction?	Y	Y	N
Was a comprehensive literature search performed?	Y	Y	Y
Was the status of publication (i.e. grey literature) used as an inclusion criterion?	Y	Y	Y
Was a list of studies (included and excluded) provided?	N	Y	N
Were the characteristics of the included studies provided?	Y	Y	N
Was the scientific quality of the included studies assessed and documented?	Y	Y	Y
Was the scientific quality of the included studies used appropriately in formulating conclusions?	Y	Y	Y
Were the methods used to combine the findings of studies appropriate?	Y	Y	Y
Was the likelihood of publication bias assessed?	Y	Y	Y
Was the conflict of interest included?	Y	Y	Y