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. 2020 Apr 30;11:415. doi: 10.3389/fphar.2020.00415

Table 4.

Risk of bias and quality of included RCTs.

Study year[ref] Random sequence generation Allocation concealment Blinding of patient Blinding of assessor Incomplete outcome data Selective reporting Other bias Jadad score
Sun XS 2005 (Sun, 2005) U U H H L U L 2
Wei GS 2007 (Wei and Qiang, 2007) U U H H L U L 1
Sun ZT 2008 (Sun et al., 2008) L U H H L U L 3
Dong H 2010 (Dong, 2010) U U H H L U L 1
Yang ZJ 2010 (Yang, 2010) U U H H L U L 2
Wang F 2011 (Wang, 2011) U U H H H U H 1
Chen P 2012 (Chen et al., 2012) U U H H L U L 1
Wu HS 2012 (Wu et al., 2012) U U H H L U L 1
Meng Y 2016 (Meng et al., 2016) U U H H L U L 1
Zhao YD 2016 (Zhao et al., 2016) U U H H L U L 1
Jiang WZ 2017 (Jiang, 2017) U U H H L U L 1
Miao G 2018 (Miao et al., 2018) L U H H L U L 2
Yang QM 2018 (Yang, 2018) U U U U L U L 2
Ma Q 2018 (Ma, 2018) L U H H H U H 3
Deng F 2018 (Deng and Wang, 2018) U U H H L U L 1
Guo SJ 2019 (Guo et al., 2019) L L L L L U L 5
Peng YF 2019 (Peng, 2019) L U H H L U L 3

RCT, randomized controlled trial; L, low risk of bias; H, high risk of bias; U, Unclear (uncertain risk of bias).