Sonographically determined kidney measurements are better able to predict histological changes and a low CKD-EPI eGFR when weighted towards cortical echogenicity

Table 2 Receiver operating characteristic (ROC) analysis of crude and weighted sonographic parameters in relation to their ability to identify patients with significant renal dysfunction

	Patients meeting criteria	ROC Analysis	CT	KL	KL/H	w-CT	w-KL	w-KL/H
SCr > 1.5 mg/dL	41.1%	AUROC p	0.617 0.051	0.565 0.243	0.619 0.033	0.776 < 0.001	0.806 < 0.001	0.838 < 0.001
CKD-EPI eGFR < 45 ml/min	40.2%	AUROC p	0.607 0.076	0.604 0.064	0.639 0.014	0.754 < 0.001	0.793 < 0.001	0.812 < 0.001

AUROC area under the receiver operating characteristic, KL kidney length, H height, CT cortical thickness, w weighted, SCr serum creatinine, eGFR estimated glomerular filtration rate, CKD-EPI chronic kidney disease epidemiology collaboration

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