Study |
Year of publication |
Random sequence generation |
Allocation concealment |
Blinding of participants and personnel |
Blinding of outcome assessment |
Incomplete outcome data |
Selective reporting |
Other sources of bias |
---|---|---|---|---|---|---|---|---|
Smiler et al. [4] | 2008 | ? | ? | + | + | + | + | + |
Castillo-Cardiel et al. [5] | 2016 | ? | + | + | + | + | + | + |
McNulty et al. [6] | 2012 | ? | ? | + | ? | + | + | + |
Dhar et al. [7] | 2012 | ? | ? | + | + | + | + | + |
Marycz et al. [8] | 2016 | + | ? | + | + | + | + | + |
Lyahyai et al. [9] | 2012 | ? | ? | ? | + | + | + | ? |
Kassis et al. [10] | 2006 | ? | ? | ? | + | + | + | ? |
Li et al. [11] | 2015 | ? | ? | - | ? | + | + | + |
Sato et al. [12] | 2016 | ? | ? | + | ? | + | + | + |
Motlló et al. [33] | 2014 | ? | ? | - | + | + | + | + |
Anguita-Compagnon et al. [34] | 2010 | ? | ? | + | + | - | + | + |
+ = low risk; ? = unclear risk; - = high risk. |