Iacovelli 2014 [23] | TerVeer 2016 [24] | Wang 2016 [25] | Chan 2017a [26] | Chan 2017b [27] | Harvey 2017 [28] | Janmaat 2017 [15] | Wagner 2017 [29] | Wang 2017 [30] | Xie 2017 [31] | Zhu 2017 [32] | Liu 2018 [33] | Zhao 2018 [34] | Chen 2019 [35] | van Kleef 2019 [36] | Wallis 2019 [37] | |
1. | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | No | Yes | Yes | No | Yes | Yes | Yes |
2. | No | No | No | No | Yes | No | Yes | Yes | Yes | No | No | Yes | No | No | No | No |
3. | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | No | No |
4. | Partial Yes | Yes | Yes | Yes | Yes | Partial Yes | Yes | Yes | Yes | Partial Yes | No | Partial Yes | Partial Yes | Partial Yes | Partial Yes | Partial Yes |
5. | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | Yes | Yes | Yes | Yes | Yes | Yes |
6. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes |
7. | No | No | Yes | No | Yes | No | Yes | Yes | Yes | No | Yes | No | No | No | No | No |
8. | Yes | Partial Yes | Yes | Partial Yes | Yes | Partial Yes | Yes | Yes | Yes | No | Yes | Partial Yes | No | Partial Yes | Partial Yes | Partial Yes |
9a. | Partial Yes | Yes | Yes | Yes | Yes | Partial Yes | Yes | Yes | Partial Yes | No | Yes | Yes | Yes | Yes | Yes | Yes |
9b. | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Includes only RCTs | Yes | Includes only RCTs | Includes only RCTs | No | Includes only RCTs | Includes only RCTs |
10. | No | No | No | No | No | No | No | No | No | No | No | No | No | No | No | Yes |
11a. | Yes | Yes | Yes | Yes | Yes | No meta-analysis conducted | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No |
11b. | Yes | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | Yes | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | Yes | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted | No meta-analysis conducted |
12. | No | No | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | No | No | No | Yes |
13. | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | No | Yes |
14. | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No | No | No | No |
15. | Yes | No | Yes | Yes | Yes | No | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | No | No |
16. | No | Yes | Yes | Yes | Yes | No | Yes | Yes | No | Yes | Yes | No | Yes | Yes | Yes | Yes |
QUALITY OF THE REVIEW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | HIGH | CRITICALLY LOW | LOW | LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW | CRITICALLY LOW |
Number of critical flaws | 6 | 5 | 2 | 3 | 0 | 6 | 1 | 1 | 2 | 8 | 2 | 3 | 5 | 5 | 6 | 6 |
Number of non-critical flaws | 4 | 3 | 1 | 3 | 1 | 6 | 1 | 1 | 3 | 6 | 1 | 3 | 6 | 5 | 6 | 3 |