No | Reference | Case-cohort Representative | Selection of Non-exposed Control | Ascertainment of Exposure | Outcome Negative at Start | Comparability by Design | Comparability by Analysis | Outcome Assessment | Duration of Follow-up | Score |
---|---|---|---|---|---|---|---|---|---|---|
1 | Dursun et al | * | * | * | * | * | * | * | * | 8 |
2 | Porwal et al | ** | * | * | * | * | * | * | * | 9 |
3 | Rahiminejad et al |
* | * | * | * | * | * | * | * | 8 |
4 | Nair et al | x | * | * | * | * | * | * | * | 7 |