Table 2 Quality evaluations of comparative studies finally included in the meta-analysis
References | Score of item I | Score of item II | Score of item III | Score of item IV | Score of item V | Score of item VI | Score of item VII | Score of item VIII | Score of item IX | Score of item X | Score of item XI | Total scores |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Qin et al. | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Gündoğan et al. | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Jiang et al. | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Lin et al. | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Kuten et al. | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |