Evaluation Item

Evaluation Results

Yes

No

Unclear

Not applicable

1) Are the factors in the case group and the control group comparable except for suffering from different diseases?

2) Is the match between the case group and the control group appropriate?

3) Are the same criteria used to recruit case group and control group?

4) Is the exposure factor measured by a standard, effective, and credible method?

5) Is the same method used to measure the exposure factors of the case group and the control group?

6) Have you considered confounding factors?

7) Have you taken measures to control the confounding factors?

8) Is the standard, effective, and credible method used to measure outcomes?

9) Is the exposure time long enough?

10) Is the data analysis method appropriate?