Author (Reference) | Country | Selection | Comparability | Outcome | Total | |||||
---|---|---|---|---|---|---|---|---|---|---|
Adequate of case definition | Representativeness of the cases | Selection of Controls | Definition of Controls | Comparability of cases and controls | Ascertainment of exposure | Samemethod of ascertainment | Non-Responserate | |||
Guo Q [34] | China | * | * | * | * | ** | * | * | * | 9 |
He A [30] | China | * | * | * | * | * | * | * | * | 8 |
Liu T [27] | China | * | * | * | * | ** | * | * | * | 6 |
Li L [12] | China | * | * | * | * | ** | * | * | * | 9 |
Liao T [24] | China | * | * | * | * | ** | * | * | * | 9 |
Liu Z [35] | China | * | * | * | * | ** | * | * | * | 9 |
Lou K [33] | China | * | * | * | * | ** | * | * | * | 9 |
Shen X [29] | China | * | * | * | * | * | * | * | NA | 7 |
Sun M [19] | China | * | * | * | * | ** | * | * | * | 9 |
Wang D [36] | China | * | * | * | * | ** | * | * | * | 9 |
Wang H [37] | China | * | * | * | * | ** | * | * | * | 9 |
Jiang J [32] | China | * | * | * | * | ** | * | * | * | 9 |
Zhang J [26] | China | * | * | * | * | ** | * | * | * | 9 |
Sadeghpour [22] | Iran | * | * | * | * | * | * | * | * | 8 |
Peng Z [23] | China | * | * | * | * | ** | * | * | * | 9 |
Zhao N [16] | China | * | * | * | * | ** | * | * | * | 9 |
Zhou T [17] | China | * | * | * | * | ** | * | * | * | 9 |
Su S [38] | China | * | * | * | * | ** | * | * | * | 9 |
Xue S [18] | China | * | * | * | * | ** | * | * | * | 9 |
Chen Q [39] | China | * | * | * | * | * | * | * | * | 8 |