|
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
|
