Figure 5
From: Estimation of salt intake from spot urine samples in patients with chronic kidney disease
ROC curves, including area under the curve (AUC). The sensitivity and specificity of estimated sodium excretion against measured sodium excretion was separately assessed by two cut-off points (>170 and >100 mEq/day, respectively). Estimated sodium excretion had high accuracy to predict measured sodium excretion using AUC, especially when the cut-off point was >170 mEq/day (AUC 0.835). UNa: urinary sodium excretion