Table 2: Bias of including trails.

Author NameSequence generationAllocation concealmentBlindingIncomplete outcome dataSelective outcome reportingOther source of biasRisk of bias

Bao and Yu [61]UnclearUnclearNNNUnclearUnclear
Chen [55]UnclearUnclearNNNUnclearUnclear
Chen and Liu [14]UnclearUnclearNNNUnclearUnclear
Chen and Li [51]UnclearUnclearNNNUnclearUnclear
Chen et al. [52]UnclearUnclearNNNUnclearUnclear
Chen et al. [56]UnclearUnclearNYNUnclearUnclear
Cui [86]UnclearUnclearNNNUnclearUnclear
Deng and Tang [15]UnclearUnclearNNNUnclearUnclear
Di [67]UnclearUnclearNNNUnclearUnclear
Dou [97]UnclearUnclearNNNUnclearUnclear
Fan [60]UnclearUnclearNNNUnclearUnclear
Fan et al. [101]UnclearUnclearNNNUnclearUnclear
Gao et al. [68]UnclearUnclearNNNUnclearUnclear
Geng et al. [27]UnclearUnclearNNNUnclearUnclear
Gu et al. [69]UnclearUnclearNNNUnclearUnclear
Guo et al. [49]UnclearUnclearNNNUnclearUnclear
Guo et al. [23]UnclearUnclearNNNUnclearUnclear
Guo et al. [102]UnclearUnclearNYNUnclearUnclear
Han and Li [36]UnclearUnclearNNNUnclearUnclear
He [70]UnclearUnclearNNNUnclearUnclear
He [98]UnclearUnclearNNNUnclearUnclear
Hong [44]UnclearUnclearSingle-blindNNUnclearUnclear
Hou and Hong [17]UnclearUnclearNNNUnclearUnclear
Huang [13]UnclearUnclearNNNUnclearUnclear
Huang [53]UnclearUnclearNNNUnclearUnclear
Huang et al. [24]UnclearUnclearNNNUnclearUnclear
Jia and Yang [71]UnclearUnclearNNNUnclearUnclear
Jian and Chen [88]UnclearUnclearNNNUnclearUnclear
Jiang [62]UnclearUnclearNNNUnclearUnclear
Jin and Guo [95]UnclearUnclearNNNUnclearUnclear
Ju [37]UnclearUnclearNNNUnclearUnclear
Lei and Li [92]UnclearUnclearNNNUnclearUnclear
Lei et al. [12]UnclearUnclearNYNUnclearUnclear
Li et al. [9]Random number tableUnclearNNNUnclearUnclear
Li et al. [72]UnclearUnclearNNNUnclearUnclear
Li [96]UnclearUnclearNNNUnclearUnclear
Li et al. [73]UnclearUnclearNNNUnclearUnclear
Li [93]UnclearUnclearNNNUnclearUnclear
Liu [75]UnclearUnclearNNNUnclearUnclear
Liu and Sun [18]UnclearUnclearNNNUnclearUnclear
Liu and Chan [50]UnclearUnclearNNNUnclearUnclear
Liu et al. [20]Random number tableUnclearNYNUnclearUnclear
Liu [74]UnclearUnclearNYNUnclearUnclear
Liu et al. [94]UnclearUnclearNNNUnclearUnclear
Lv [57]UnclearUnclearNNNUnclearUnclear
Luo et al. [76]UnclearUnclearNNNUnclearUnclear
Luo et al. [38]Random number tableUnclearNYNUnclearUnclear
Ma et al. [48]UnclearUnclearNNNUnclearUnclear
Ma and Huang [99]UnclearUnclearNNNUnclearUnclear
Ma [77]UnclearUnclearNNNUnclearUnclear
Pan et al. [89]UnclearUnclearNNNUnclearUnclear
Qiu [103]UnclearUnclearNNNUnclearUnclear
Ru [46]UnclearUnclearSingle-blindNNUnclearUnclear
Shang [78]UnclearUnclearNNNUnclearUnclear
Song [106]UnclearUnclearNNNUnclearUnclear
Song et al. [10]Random number tableUnclearNNNUnclearUnclear
Su [90]UnclearUnclearNNNUnclearUnclear
Tan et al. [58]UnclearUnclearNNNUnclearUnclear
Tian and Gong [16]UnclearUnclearNNNUnclearUnclear
Tian [80]UnclearUnclearNNNUnclearUnclear
Tu and Yang [63]UnclearUnclearNNNUnclearUnclear
Tu et al. [32]UnclearUnclearNNNUnclearUnclear
G. L. Wang and J. Wang [104]UnclearUnclearNNNUnclearUnclear
Wang [100]UnclearUnclearNNNUnclearUnclear
Wang [39]Random number tableUnclearNNNUnclearUnclear
Wang [28]UnclearUnclearNNNUnclearUnclear
Wang and Ye [87]UnclearUnclearNYNUnclearUnclear
Wang et al. [81]UnclearUnclearNNNUnclearUnclear
Wu and Duan [45]UnclearUnclearSingle-blindYNUnclearUnclear
Wu and Wang [64]UnclearUnclearNNNUnclearUnclear
Wu et al. [40]Random number tableUnclearNNNUnclearUnclear
Yang and Wu [82]UnclearUnclearNNNUnclearUnclear
Yang et al. [54]UnclearUnclearNNNUnclearUnclear
Yao and Lu [65]UnclearUnclearNNNUnclearUnclear
Yin [83]UnclearUnclearNNNUnclearUnclear
Yu et al. [84]UnclearUnclearNNNUnclearUnclear
Yu [66]UnclearUnclearNNNUnclearUnclear
Zhan and Yang [47]UnclearUnclearNYNUnclearUnclear
Zhang [79]UnclearUnclearNNNUnclearUnclear
Zhang et al. [85]UnclearUnclearNNNUnclearUnclear
Zhang [42]odd and even number of IDUnclearNNNUnclearUnclear
Zhang and Pan [30]UnclearUnclearNNNUnclearUnclear
Zhang [29]Random number tableUnclearNNNUnclearUnclear
Zhang [43]UnclearUnclearDouble-blindNNUnclearUnclear
Zhao et al. [11]Random number tableUnclearNNNUnclearUnclear
Zhao [91]UnclearUnclearNNNUnclearUnclear
Zhou [59]UnclearUnclearNNNUnclearUnclear
Zhou [19]Drew lotsUnclearNNNUnclearUnclear
Zhou et al. [31]UnclearUnclearNNNUnclearUnclear
Zhu and Ma [105]UnclearUnclearNNNUnclearUnclear
Zi and Li [41]Random number tableUnclearNNNUnclearUnclear
Guo et al. [22]UnclearUnclearNYNUnclearUnclear
Mo and Zhao [25]UnclearUnclearNNNUnclearUnclear
Song and Zhang [33]UnclearUnclearNYNUnclearUnclear
Zeng et al. [34]UnclearUnclearNNNUnclearUnclear
Zeng [26]UnclearUnclearNNNUnclearUnclear
Zhang [35]UnclearUnclearNYNUnclearUnclear