Table 4 Overview of the quality assessment of studies using SIGN, Drummond and Cochrane criteria
Authors | OVERALL | Quality | ||
|---|---|---|---|---|
High | Moderate | Low | ||
Campbell et al. (33) | 77·05% | 14·66% | 8·29% | Moderate quality |
Church et al. (28) | 53·67% | 24·83% | 21·50% | Low quality |
Hutton et al. (31) | 82·01% | 13·21% | 4·78% | High quality |
Lee et al. (34) | 65·30% | 8·12% | 26·59% | Moderate quality |
Li et al. (32) | 85·04% | 5·09% | 9·87% | High quality |
Marchand et al. (27) | 82·81% | 11·93% | 5·26% | High quality |
Salmerón et al. (35) | 48·88% | 20·22% | 30·89% | Low quality |
Sansone & Bravo (36) | 55·73% | 16·41% | 27·86% | Low quality |
Trick et al. (29) | 60·81% | 9·87% | 29·31% | Moderate quality |
Verma et al. (30) | 96·49% | 1·75% | 1·75% | High quality |