Reference | Overall quality assessment | Selection bias | Study design | Confounders | Blinding | Data collection | Withdrawals and drop outs |
---|---|---|---|---|---|---|---|
Chen et al. [44] | Strong | 1 | 2 | 1 | 2 | 1 | 1 |
Mazul et al. [34] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Hashim et al. [20] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Laprise et al. [45] | Strong | 2 | 2 | 1 | 2 | 1 | 1 |
Friemel et al. [21] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Dholam and Chouksey [46] | Strong | 1 | 2 | 2 | 2 | 1 | 2 |
Bertl et al. [31] | Moderate | 2 | 3 | 2 | 2 | 2 | 2 |
Huang J et al. [47] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Tsai et al. [48] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Ahrens et al. [22] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Narayan et al. [49] | Weak | 3 | 3 | 3 | 2 | 1 | 3 |
Moergal et al. [23] | Moderate | 3 | 2 | 2 | 2 | 1 | 2 |
Eliot et al. [35] | Strong | 1 | 2 | 1 | 1 | 1 | 2 |
Chang et al. [50] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Langevin et al. [4] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Frydrych et al. [53] | Moderate | 3 | 2 | 2 | 2 | 2 | 2 |
Groome et al. [3] | Strong | 2 | 1 | 1 | 2 | 2 | 2 |
Macfarlane et al. [24] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Johnson et al. [36] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Divaris et al. [18] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Watson et al. [1] | Moderate | 3 | 2 | 2 | 2 | 2 | 2 |
Marques et al. [39] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Guha et al. [40] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Rosenquist et al. [56] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Guneri et al. [26] | Moderate | 1 | 2 | 2 | 2 | 1 | 2 |
Lissowska et al. [27] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Gellrich et al. [32] | Weak | 1 | 3 | 1 | 3 | 1 | 1 |
Balram et al. [52] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Garrote et al. [41] | Strong | 1 | 2 | 1 | 2 | 1 | 1 |
Winn et al. [42] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Moreno-Lopez et al. [54] | Strong | 2 | 2 | 1 | 2 | 1 | 2 |
Talamini et al. [28] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Bundgaard et al. [29] | Strong | 1 | 2 | 1 | 2 | 1 | 1 |
Lockhart et al. [38] | Weak | 3 | 3 | 2 | 2 | 2 | 2 |
Maier et al. [30] | Moderate | 3 | 2 | 2 | 2 | 1 | 2 |
Marshall et al. [37] | Moderate | 3 | 2 | 1 | 2 | 1 | 2 |
Zheng et al. [51] | Strong | 1 | 2 | 1 | 2 | 1 | 1 |
Franco et al. [43] | Strong | 1 | 2 | 1 | 2 | 1 | 2 |
Elwood et al. [2] | Strong | 2 | 2 | 1 | 2 | 1 | 1 |