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. 2021 Dec 3;2021:8963168. doi: 10.1155/2021/8963168

Table 2.

Quality assessment form for multiple systematic reviews (AMSTAR).

Silva et al. (2020) Azim et al. (2020) Banakar et al. (2020) Abramovitz et al. (2020)
1. Was a priori design provided? Y Y Y Y
2. Were there duplicate study selection and data extraction? N N Y N
3. Was a comprehensive literature search performed? Y Y Y N
4. Was the status of publication (i.e., grey literature) used as an inclusion criterion? Y Y Y N
5. Was a list of studies (included and excluded) provided? N Y Y N
6. Were the characteristics of the included studies provided? N Y Y N
7. Was the scientific quality of the included studies assessed and documented? N N N Y
8. Was the scientific quality of the included studies used appropriately in formulating conclusions? N N Y Y
9. Were the methods used to combine the findings of studies appropriate? Y Y Y Y
10. Was the likelihood of publication bias assessed? Y N N N
11. Was the conflict of interest included? N Y Y Y

Y: yes; N: no; CA: cannot answer; NA: not applicable.