Table 3. Assessment of study quality.
Published
year |
study |
Quality indicators from Newcastle-Ottawa Scale* |
1 |
2 |
3 |
4 |
5A |
5B |
6 |
7 |
8 |
Case-control studies |
2005a |
Hageman et al. [19]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
2005b |
Hageman et al. [19]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
2006 |
Chen et al. [20]
|
Yes |
Yes |
No |
Yes |
No |
Yes |
No |
Yes |
No |
2006 |
Fuse et al. [21]
|
Yes |
Yes |
No |
Yes |
No |
No |
No |
Yes |
No |
2007 |
Mori et al. [22]
|
Yes |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |
No |
2008 |
Kim et al. [23]
|
Yes |
Yes |
No |
Yes |
Yes |
Yes |
No |
Yes |
No |
2008 |
Lee et al. [24]
|
Yes |
Yes |
No |
Yes |
No |
No |
No |
Yes |
No |
2009 |
Bergeron et al. [26]
|
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
Yes |
No |
2009 |
Goto et al. [27]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
2010 |
Hayashi et al. [28]
|
Yes |
Yes |
Yes |
Yes |
No |
No |
No |
Yes |
No |
2010 |
Hecker et al. [29]
|
Yes |
Yes |
No |
Yes |
No |
No |
No |
Yes |
No |
2010 |
Liu et al. [30]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
2010 |
Yang et al. [31]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
2011 |
Tanaka et al. [32]
|
Yes |
Yes |
No |
Yes |
Yes |
No |
No |
Yes |
No |
Cohort |
2008 |
Xing et al. [25]
|
Yes |
Yes |
Yes |
Yes |
No |
No |
No |
Yes |
No |