Table 3 Assessment for quality of included studies
Study | Selection | Comparability | Outcome assessment | Score | ||||
|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 1 | 2 | 1 | 2 | ||
Kondo T et al 2014 [31] | 1 | 1 | 1 | 2 | 0 | 1 | 1 | 7 |
Ouzzane A et al 2013 [16] | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 7 |
Mason RJ et al 2012 [15] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |
Burger M et al 2011 [30] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |
Abe T et al 2010 [29] | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 7 |
Lughezzani et al 2010 [14] | 1 | 1 | 1 | 0 | 2 | 1 | 1 | 7 |
Roscigno M et al 2009 [28] | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |
Kondo T et al 2007 [27] | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 8 |
Secin FP et al 2007 [26] | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7 |
Brausi MA et al 2007 [25] | 0 | 1 | 1 | 2 | 2 | 1 | 1 | 8 |
Miyake H et al 1998 [24] | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 8 |