Liuwei Dihuang Pills Enhance the Effect of Western Medicine in Treating Diabetic Nephropathy: A Meta-Analysis of Randomized Controlled Trials

Table 2

Quality assessment of included randomized controlled trials.

Included trials	Random sequence generation	Allocation concealment	Blinding of participants and personnel	Blinding of outcome assessment	Incomplete outcome data	Selective reporting	Other sources of bias
Cao (2013) [18]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Lou (2014) [32]	Table of random numbers	Unclear	Unclear	Unclear	No	No	Unclear
Li and Zhao (2011) [26]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
He et al. (2009) [20]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Song et al. (2004) [28]	Table of random numbers	Unclear	Unclear	Unclear	No	No	Unclear
Chen and Ling (2004) [15]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Liu (2012) [21]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Kong and Zeng (2014) [17]	Order of hospital registration	Unclear	Unclear	Unclear	No	No	Unclear
Chen et al. (2009) [23]	Order of hospital registration	Unclear	Single blinding	Unclear	No	No	Unclear
Wang (2015) [24]	Drawing lots	Unclear	Unclear	Unclear	No	No	Unclear
Wang et al. (2013) [16]	Coin tossing	Unclear	Unclear	Unclear	No	No	Unclear
Yin et al. (2010) [29]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Li (2013) [22]	Table of random numbers	Unclear	Unclear	Unclear	No	No	Unclear
Zhong et al. (2010) [30]	Table of random numbers	Unclear	Unclear	Unclear	No	No	Unclear
Zhao (2010) [25]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Ma (2015) [31]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Deng et al. (2006) [19]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear
Lv and Wang (2006) [27]	Unclear	Unclear	Unclear	Unclear	No	No	Unclear