B2-microglobulin level cut-off levels that may be used to identify patients with residual renal function measured as GFR.

AUC: Area Under the CurveFor various levels of GFR the cut-off β2 microglobulin level was determined that would yield a false positive rate (specificity) of 10%. For each GFR level area under the curve is shown for ROC analyses.AUC：曲线下面积（Area Under the Curve）。针对不同水平的肾小球滤过率（Glomerular Filtration Rate，GFR），本研究确定了可实现10%假阳性率（特异度，specificity）的β2微球蛋白（β2 microglobulin）临界值。针对每一肾小球滤过率水平，受试者工作特征（Receiver Operating Characteristic，ROC）分析的曲线下面积均已展示。