The Efficacy of Guanxinning Injection in Treating Angina Pectoris: Systematic Review and Meta-Analysis of Randomized Controlled Trials
Table 2
Quality assessment of included studies.
Study
C1
C2
C3
C4
C5
C6
C7
C8
Comparable
Random
Blind
Dropout
AE
Jadad
M
Chen 2009
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Chen et al. 2011
Low
Unclear
High
High
Low
Low
High
High
0
1
0
1
0
2
2
Chen 2006
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Cheng and Zeng 2010
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Cheng et al. 2011
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Dong 2009
Low
High
High
High
Low
Low
Unclear
High
0
1
0
1
0.5
2
2.5
Fu and Meng 2011
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Fu et al. 2010
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Gao et al. 2005
Low
Low
High
High
Low
Low
Low
Low
1
1
1
1
1
3
5
Gong et al. 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
He 2007
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
He 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Hou and Gao 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Huang et al. 2011
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Jiang et al. 2010
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Jiang 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Jiang et al. 2010
Low
High
High
High
Low
Low
Low
Low
0
1
0
1
1
2
3
Kong 2009
Low
High
High
High
Low
Low
Unclear
Low
1
1
0
1
1
2
4
Lan et al. 2006
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Li and Jia 2011
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Li and Lei 2005
Low
High
High
High
Low
Low
Low
Low
0
1
0
1
1
2
3
Li et al. 2009
Low
Low
Low
Low
Low
Low
High
High
1
1
2
1
0
4
5
Li and Ran 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Li 2004
Low
High
High
High
Low
Low
High
Low
1
1
0
1
0
2
3
Liang and Feng 2010
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Liu 2004
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Liu and Li 2007
Low
High
High
High
Low
Low
High
High
0
1
0
1
1
2
3
Liu 2005
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Liu 2011
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Lu et al. 2006
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Ma and Peng 2008
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
0
2
3
Nie and Chen 2007
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Qiao and Wu 2004
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Song 2010
Low
High
High
High
Low
Low
Low
Unclear
0
1
0
1
0.5
2
2.5
Su 2009
Low
Unclear
High
High
Low
Low
Low
Low
0
1
0
1
1
2
3
Sun 2010
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Sun et al. 2006
Low
High
High
High
Low
Low
High
Unclear
0
1
0
1
0
2
2
Tian and Wu 2006
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wan and Xu 2009
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wang 2007
Low
High
High
High
Low
Low
Low
High
1
1
0
1
1
2
4
Wang 2011
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wang 2011
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wang and Ji 2008
Low
High
High
High
Low
Low
High
High
0
1
0
1
0
2
2
Wang and Sun 2007
Low
High
High
High
Low
Low
High
Unclear
0
1
0
1
0
2
2
Wang 2005
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Wang 2010
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wang 2005
Low
High
High
High
Low
Low
High
Unclear
0
1
0
1
0
2
2
Wang 2005
Low
Low
Unclear
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wang et al. 2011
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Wu et al. 2008
Low
High
High
High
Low
Low
High
Unclear
1
1
0
1
0
2
3
Wu et al. 2011
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Xia 2011
Low
Low
Unclear
High
Low
Low
High
Unclear
1
1
0
1
0
2
3
Yang and Ma 2008
Low
Low
Unclear
High
Low
Low
High
High
1
1
0
1
0
2
3
Ye et al. 2008
Low
High
High
High
Low
Low
Low
Low
0
1
0
1
1
2
3
Yu and Wang 2009
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Yuan 2005
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Zhang 2005
Low
High
High
High
Low
Low
High
High
1
1
0
1
0
2
3
Zhang 2010
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Zhang 2004
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Zhang 2004
Low
High
High
High
Low
Low
Low
High
0
1
0
1
1
2
3
Zhao et al. 2010
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Zhao and An 2008
Low
High
High
High
Low
Low
Low
Low
1
1
0
1
1
2
4
Zhao 2010
Low
High
High
High
Low
Low
High
Unclear
1
1
0
1
0
2
3
Zhong et al. 2007
Low
High
High
High
Low
Low
High
High
0
1
0
1
0
2
2
Zhu 2005
Low
High
High
High
Low
Low
Unclear
Unclear
0
1
0
1
0.5
2
2.5
C1 is random sequence generation for selection bias; C2 is allocation concealment for selection bias; C3 is blinding of participants and personnel for performance bias; C4 is blinding of outcome assessment (patient-reported outcomes) for detection bias; C5 is blinding of outcome assessment (SYMPTOMS) for detection bias; C6 is incomplete outcome data addressed for attrition bias; C7 is reporting bias for selecting reporting; C8 is other sources of bias for other bias; Comparable is participants in treat group and control group comparable; Random is study described as randomized; Blind is study described as blinding; Dropout is withdrawals and dropouts of participants; AE is the adverse effects; Low is low risk of bias; High is high risk of bias; Unclear is unclear risk of bias.
