R-AMSTAR score of systematic reviews
| Author (year) | Items | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Total | |
| Chan et al (2014)16 | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 1 | 3 | 38 |
| Chang et al (2015)18 | 2 | 4 | 4 | 3 | 3 | 4 | 3 | 4 | 4 | 4 | 3 | 38 |
| Chen et al (2015)23 | 4 | 4 | 3 | 1 | 4 | 2 | 2 | 1 | 4 | 4 | 1 | 30 |
| Gallagher et al (2015)24 | 4 | 1 | 4 | 1 | 2 | 4 | 3 | 4 | 2 | 1 | 3 | 32 |
| Huang et al (2013)20 | 2 | 2 | 3 | 2 | 2 | 4 | 4 | 4 | 4 | 1 | 1 | 29 |
| Kluczynski et al (2014)19 | 4 | 1 | 3 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 3 | 21 |
| Littlewood et al (2015)17 | 4 | 1 | 4 | 2 | 2 | 4 | 4 | 4 | 4 | 1 | 3 | 33 |
| Riboh and Garrigues (2014)21 | 3 | 4 | 3 | 1 | 1 | 4 | 4 | 4 | 4 | 1 | 3 | 32 |
| Shen et al (2014)15 | 3 | 4 | 3 | 3 | 2 | 3 | 3 | 2 | 4 | 1 | 1 | 29 |
| Yi et al (2015)22 | 4 | 2 | 1 | 1 | 2 | 4 | 1 | 1 | 1 | 2 | 2 | 20 |