Table 1 Quality assessment of included studies (Newcastle–Ottawa Scale).
From: Serum vitamin D levels and acute kidney injury: a systemic review and meta-analysis
Author | Representativeness of the exposed cohort | Selection of the non exposed cohort | Ascertainment | Outcome was not present at start of study | Select the most important factor | Indicate specific control for a second important factor | Assessment of outcome | Follow-up time | Adequacy of follow-up | Quality |
|---|---|---|---|---|---|---|---|---|---|---|
Anitha Vijayan, 2015 | * | * | * | * | * | * | * | * | High | |
Lai, 2013 | * | * | * | * | * | * | * | * | High | |
David E. Leaf, 2013 | * | * | * | * | * | * | * | * | * | High |
Murat Gunay, 2019 | * | * | * | * | * | * | * | * | High |
