The Effectiveness and Safety of Moxibustion for Treating Knee Osteoarthritis: A PRISMA Compliant Systematic Review and Meta-Analysis of Randomized Controlled Trials

Table 3

Risk of bias in the included RCTs.

Study	Random sequence generation	Allocation concealment	Blinding		Outcome data integrity	Selective outcome reporting	Other biases
			Patient/doctor blinding	Outcome assessor blinding
Dai et al. [2]	Random number table	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Bu et al. [20]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Yao [21]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Chao [22]	Draw random	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Li et al. [23]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ren [24]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Chen et al. [25]	Random word	High risk	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Wang et al. [26]	Computer random	Low risk	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Huang and Ji [27]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Chi et al. [28]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ji [29]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ren et al. [30]	Computer random	Low risk	Uncertain	Low risk	Low risk	Uncertain	Uncertain
Sit et al. [31]	Random word	High risk	Low risk	Uncertain	Uncertain	Uncertain	Uncertain
Cui [32]	Random number table	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Huang et al. [33]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Zhang and Li [34]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Wang [35]	Draw random	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Deng et al. [36]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Li et al. [37]	Random word	High risk	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Kim et al. [38]	Computer random	Low risk	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Zhao et al. [39]	Computer random	Low risk	Low risk	Low risk	Low risk	Uncertain	Uncertain
Zhang [40]	Computer random	Low risk	Single blind	Uncertain	Uncertain	Uncertain	Uncertain
Xu [41]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Jiang et al. [42]	Random number table	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Song et al. [43]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Qiu [44]	Random number table	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Ren and Li [45]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Hong et al. [46]	Draw random	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Lin [47]	Draw random	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Yang et al. [48]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ren et al. [49]	Computer random	Low risk	Low risk	Low risk	Low risk	Uncertain	Uncertain
Wu and Xiong [50]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Fu et al. [51]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ren et al. [52]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Ding et al. [53]	Random number table	Low risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Nie et al. [54]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Zhang [55]	Random number table	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain
Sun et al. [56]	Random number table	Uncertain	Uncertain	Uncertain	Low risk	Uncertain	Uncertain
Wu et al. [57]	Random word	High risk	Uncertain	Uncertain	Uncertain	Uncertain	Uncertain