As depicted in Table 2 , univariable meta-regression analysis revealed that study design, angiography procedures, administration route, and representativeness of study population were significantly associated with heterogeneity of CIN incidence estimates, and median age and amount of contrast medium exposure approached the borderline of significance.
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The Incidence of Contrast-Induced Nephropathy and the Need of Dialysis in Patients Receiving Angiography: A Systematic Review and Meta-Analysis.
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