Table 2.
Quality of included studies
| Author, Year |
Selection | comparability | Exposure | Overall score | Quality | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Case definition adequate | Representativeness of the cases | Selection of controls | Definition Of controls |
Comparability of cases and controls on the bias of the design or analysis | Ascertainment of exposure | Same method of ascertainment for cases and controls | Non-response rate | |||
| Abdellah 2019 [23] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 6 | Medium |
|
Aidenloo 2022 [16] |
1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 7 | Medium |
|
Jee 2015 [17] |
1 | 1 | 1 | NA | 1 | 1 | 1 | 0 | 6 | Medium |
|
Öktem 2021 [24] |
1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 6 | Medium |
NA: not applicable