LCN2 and acute kidney injury: When previously reported NGAL cut-off level (142 ng/ml) for AKI was used [11], binary logistic regression analysis confirmed a beneficial effect of the use of the RG system, with an increased risk of AKI of 2.2 times in the control group (OR 2.2, 95% CI 1.14–4.27, p = 0.02).