Study | Case definition adequate | Representativeness of the cases | Selection of controls | Definition of controls | Comparability based on design or analysis | analysis ascertainment of exposure | Same method of ascertainment for cases and controls | Non-response rate | Total scores |
---|---|---|---|---|---|---|---|---|---|
Yang et al. 2017 [39] | ★ | ★ | ★ | ★ | ★ ★ | ★ | ★ | - | 8 |
Ahmad et al. 2016 [40] | ★ | ★ | ★ | ★ | ★ | - | ★ | - | 6 |
Jannuzzi et al. 2014 [41] | ★ | ★ | - | ★ | ★ ★ | ★ | ★ | - | 7 |
Credidio et al. 2014 [42] | ★ | ★ | ★ | ★ | ★ ★ | ★ | ★ | - | 8 |
Lau et al. 2014 [43] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |
Jang et al. 2013 [44] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |
Antonacopoulou et al. 2011 [45] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |
Wu et al. 2011 [46] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |
Wu et al. 2009 [47] | ★ | ★ | ★ | ★ | ★ ★ | ★ | ★ | - | 8 |
Ungerbäck et al. 2009 [48] | ★ | ★ | ★ | ★ | ★★ | ★ | ★ | - | 8 |
Bae et al. 2008 [49] | ★ | ★ | ★ | ★ | ★ ★ | - | ★ | - | 7 |
Chae et al. 2008 [50] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |
Hofmann et al. 2008 [51] | ★ | ★ | ★ | ★ | ★ | ★ | ★ | - | 7 |