Review Article
Systematic Review and Meta-Analysis of 16 Randomized Clinical Trials of Radix Astragali and Its Prescriptions for Diabetic Retinopathy
Table 2
Quality assessment of evaluated studies.
| Items | Gao, 2009 [30] |
Bai et al., 2010 [29] |
Wu et al., 2009 [31] |
Ling and Xu, 2006 [32] |
Zhou et al., 2007 [33] |
Cai et al., 2005 [34] |
Liang et al., 2008 [35] | Teng, 2004 [36] | Li, 2004 [37] |
Chen et al., 2009 [38] |
Lei et al., 2008 [39] |
Xiong et al., 2009 [40] | Zhang, 2010 [41] |
Zhu et al., 1996 [42] |
Li et al., 1999 [43] | Cui, 2006 [44] |
| Adequate sequence generation | Yes | UC | Yes | UC | UC | UC | UC | Yes | UC | UC | UC | UC | UC | UC | UC | Yes | Allocation concealment | No | No | Yes | No | No | No | No | No | No | No | No | No | No | No | No | No | Blinding method | Single blinding | No | Double blinding | No | No | No | No | Single blinding | No | No | No | No | No | No | No | No | Incomplete outcome data addressed | No | No | Yes | No | No | No | No | No | No | UC | No | No | No | No | No | No | Selective outcome reporting | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | Other source of bias | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC | UC |
|
|
UC: unclear.
|