Review Article
Ginkgo biloba Extract for Patients with Early Diabetic Nephropathy: A Systematic Review
Table 4
Methodological quality of analysed studies.
| Author, year | Random sequence generation | Allocation concealment | Blinding | Incomplete outcome data | Selective reporting | Other bias |
|
Chen, 2010 [15]
| Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Chu, 2010 [16] | Low risk | Low risk | High risk | Unclear | Low risk | Unclear |
Han, 2008 [17] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Huang et al., 2006 [18] | Low risk | Low risk | High risk | High risk | Low risk | Unclear | Li and Han, 2010 [19] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Li et al., 2007 [20] | Low risk | Unclear | High risk | Unclear | Unclear | Unclear | P. Y. Lu, 2005 [21] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | J. Lu, 2005 [22] | Low risk | Low risk | High risk | Low risk | Low risk | Unclear | Qiu, 2006 [23] | Low risk | Low risk | High risk | Low risk | Low risk | Unclear | Quan, 2003 [24] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Tian, 2009 [25] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear |
Wang, 2005 [26] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Wang, 2004 [27] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear | Zhang, 2009 [28] | Low risk | Unclear | High risk | Low risk | Unclear | Unclear | Zhang, 2007 [29] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear |
Zhang et al., 2006 [30] | Unclear | Unclear | High risk | Unclear | Unclear | Unclear |
|
|