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Kaplan–Meier plots of the cumulative percentage of patients with an initial episode of AKI. The primary study end point was the first occurrence of change in the eGFR (a decline of ≥30 ml/min per 1.73 m2 body surface area if the initial eGFR was ≥60 ml/min per 1.73 m2 or a decline of ≥50% baseline eGFR if the baseline eGFR was <60 ml/min per 1.73 m2), ESRD, or death. P value was calculated using a stratified log rank test. 95% CI, 95% confidence interval.
