Table 2 Quality assessment and risk of bias
Study question | Backman et al. [51] | Benzo et al. [52] | Gary et al. [53] | Hoaas et al. [44] | Hoaas et al. [50] | Mendoza et al. [49] | Moy et al [54] | Pinto et al. [55] |
|---|---|---|---|---|---|---|---|---|
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
2 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 |
3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
4 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 |
5 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 |
6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
8 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 |
9 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 |
10 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |
11 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
12 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 |
13 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
14 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 |
15 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
Total | 7 | 6 | 10 | 7 | 11 | 11 | 8 | 10 |
Score | Medium | Medium | Medium | Medium | High | High | Medium | Medium |