Study | Is the case definition adequate? | Representativeness of the cases | Selection of Controls | Definition of Controls | Comparability of cases and controls on the basis of the design or analysis | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-Response rate | Scores |
---|---|---|---|---|---|---|---|---|---|
McCleery 2010 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 9 |
Miric 2013 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Ponnusamy 2015 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |
Lizaur-Utrilla 2016 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |
Kuo 2016 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Kuo 2017 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
Bedard 2018 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 6 |