Figure a:

To convert SCr levels to International System of Units (micromoles per liter), multiply by 88.4. (a) Graph shows odds ratios and 95% CIs for development of post-CT AKI (defined by AKIN SCr criteria; SCr increase by ≥0.3 mg/dL or ≥1.50 times above baseline) comparing contrast-enhanced CT to unenhanced CT in the propensity-score adjusted subgroup multivariate analyses, subdivided by common clinical serum creatinine thresholds. Values on x-axis are thresholds for SCr. For example, odds ratio and 95% CI for 1.7 mg/dL represents the results for subgroup of patients whose pre-CT SCr was 1.7 mg/dL or greater. (b) Graph shows odds ratios and 95% CIs for development of post-CT AKI (defined by traditional CIN SCr criteria; SCr increase by ≥0.5 mg/dL or ≥1.25 times above baseline) by comparing contrast-enhanced CT to unenhanced CT in the propensity-score adjusted subgroup multivariate analyses, subdivided by common clinical serum creatinine thresholds. Values on x-axis are thresholds for SCr. For example, odds ratio and 95% CI for 1.7 mg/dL represents results for subgroup of patients whose pre-CT SCr was ≥1.7 mg/dL.