Study | Methodologic itemsa | Total | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | ||
Yang et al. 2006 [11] | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 16 |
Janssen et al. 2007 [13] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Zhang 2007 [16] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 1 | 16 |
Vallier et al. 2008 [9] | 2 | 2 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 18 |
Chen et al. 2008 [17] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Huang 2008 [18] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Ni 2010 [19] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Feng 2011 [32] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Wu 2011 [20] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 1 | 16 |
Huang 2012 [21] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Jin 2012 [22] | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 16 |
Li 2012 [14] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Ren 2012 [23] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 1 | 16 |
Seyhan et al. 2012 [12] | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 16 |
Tan 2012 [24] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Yang 2012 [25] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Ke 20113 [26] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Wang 2013 [27] | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 16 |
Yao 2013 [28] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Zhu 2013 [29] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Dong 2014 [30] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Guo 2014 [31] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |
Yavuz 2014 [15] | 2 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 2 | 2 | 2 | 2 | 17 |