Random sequence generation |
Allocation concealment |
Blinding |
Incomplete outcome data |
Selective reporting |
Other sources of bias |
|
---|---|---|---|---|---|---|
Panagos et al. [7] | ? | ? | - | + | + | + |
Hultin et al. [20] | ? | - | - | + | + | + |
Wang et al. [21] | + | + | + | + | + | + |
Yaghobee et al. [22] | ? | ? | ? | + | + | + |
Wohlfahrt et al. [23] | + | + | ? | + | + | + |
de Mendonça et al. [24] | ? | ? | ? | + | + | + |
Schierano et al. [25] | + | ? | + | + | + | + |
Duarte et al. [26] | + | + | + | + | + | + |
Lachmann et al. [27] | ? | + | + | ? | + | + |
Basegmez et al. [29] | ? | ? | ? | + | + | + |
Ramseier et al. [30] | + | + | ? | + | + | + |
Nomura et al. [31] | ? | ? | ? | + | + | ? |
Ma et al. [32] | ? | ? | ? | ? | + | + |
Ma et al. [33] | ? | ? | ? | + | + | + |
Casado et al. [35] | ? | ? | ? | + | + | + |
Petković et al. [36] | ? | ? | - | ? | + | ? |
Ata-Ali et al. [38] | ? | ? | ? | + | ? | + |
Lachmann et al. [39] | ? | ? | ? | + | + | + |
Melo et al. [40] | ? | ? | ? | + | + | + |
Renvert et al. [41] | ? | + | + | + | + | + |
Yaghobee et al. [42] | ? | ? | ? | + | + | + |
Fonseca et al. [43] | ? | ? | ? | + | + | + |
Güncü et al. [44]. | ? | ? | ? | + | + | + |
Aboyoussef et al. [45] | ? | ? | - | + | + | + |
Luo et al. [46] | ? | ? | ? | + | + | + |
Ata-Ali et al. [47] | ? | ? | ? | + | + | + |
Darabi et al. [48] | ? | ? | - | ? | ? | ? |
Güncü et al. [50] | + | ? | ? | + | + | + |
Liskmann et al. [51] | ? | ? | ? | + | + | + |
Tözüm et al. [52] | ? | ? | ? | + | + | + |
Plagnat et al. [53] | ? | ? | ? | + | + | + |
Yamalik et al. [54] | ? | ? | ? | + | + | + |
Arikan et al. [55] | ? | ? | ? | + | + | + |
Rakic et al. [56] | ? | ? | ? | + | + | + |
Murata et al. [57] | ? | ? | ? | + | + | + |
Tümer et al. [58] | ? | ? | ? | + | + | + |
Rakic et al. [59] | ? | ? | ? | + | + | + |
Severino et al. [60] | ? | ? | ? | + | + | + |
Monov et al. [61] | ? | ? | ? | + | + | + |
Fiorellini et al. [62] | ? | ? | ? | + | + | + |
Zhang et al. [63] | ? | ? | ? | + | + | + |
+ = low risk; ? = unclear risk; - = high risk. |