|
Author
|
Quality assessment of case control studies
|
|---|
|
Is the case definition adequate?
|
Representativeness of the cases
|
Selection of controls
|
Definition of controls
|
Comparability of cases and controls on basis of design or analysis
|
Ascertainment of exposure
|
Same method of ascertainment for cases and controls
|
Non-Response rate
|
Total Newcastle Ottawa Scale (possible 9 starts)
|
|---|
|
Barrack et al. (2001)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
8*
|
|
Bell et al. (2014)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
8*
|
|
Czurda et al. (2010)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
7*
|
|
Magnussen et al. (2011)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
Yes
|
Yes
|
7*
|
|
Matziolis et al. (2010)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
8*
|
|
Nicoll and Rowley (2010)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
8*
|
|
Stulberg et al. (2008)
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
8*
|
- Assessed using the Ottawa-Newcastle score (Viswanathan et al. 2008a)
- * Represents how many stars were achieved in the assessment of quality for each study
