Table 1 Ottawa rating for included studies: (* OR ** means criteria fulfilled/Maximum score =9)
From: Red cell distribution width and preeclampsia: a systematic review and meta-analysis
Study | Is the case definition adequate? | Selection | Selection of Controls | Definition of Controls | Comparability | Ascertainment of exposure | Outcome | Non-response rate | Total Score |
|---|---|---|---|---|---|---|---|---|---|
Representativeness of the cases | Comparability of cases and controls | Same method of ascertainment | |||||||
Çintesun, et al | * | * | * | * | ** | * | * | – | 8 |
Elgari, et al | * | * | * | * | ** | * | * | – | 8 |
Prasmusinto, et al | * | * | * | * | * | * | * | – | 7 |
Yücel and Ustun | * | * | * | * | ** | * | * | – | 8 |
Reddy, et al | * | * | * | * | ** | * | * | – | 8 |
Sen-Yu W, Chao X. | * | * | * | * | ** | * | * | – | 8 |
Yılmaz, et al | * | * | * | * | ** | * | * | – | 8 |
Avcıoğlu, et al | * | * | * | * | * | * | * | – | 7 |
Abdullahi, et al | * | * | * | * | ** | * | * | – | 8 |
Kurt, et al | * | * | * | * | ** | * | * | – | 8 |
Huang, et al | * | * | * | * | ** | * | * | – | 8 |