Figure 1From: The incidence and risk factors of acute kidney injury after hepatobiliary surgery: a prospective observational study Receiver operating characteristic (ROC) curves of urine NGAL for the diagnosis of clinical AKI. The areas under the ROC curves are as follows: urine NGAL-6 h, 0.780 (95% CI 0.659-0.901, p = 0.005); urine NGAL-12 h, 0.886 (95% CI 0.803-0.969, p <0.001); urine NGAL-24 h, 0.714 (95% CI 0.549-0.880, p = 0.033).Back to article page