Fig. 2
From: Non-histologic factors discriminating proliferative lupus nephritis from membranous lupus nephritis
Receiver-operating characteristic curves for the predictive value of a anti-U1RNP Ab, b anti-dsDNA Ab, c GFR, and d combination of anti-U1RNP Ab, anti-dsDNA Ab, and GFR as a composite parameter, for predicting pure proliferative LN (class III and class IV). Ab, antibody; anti-dsDNA, anti-double-stranded DNA; GFR, glomerular filtration rate; LN, lupus nephritis; AUC, area under the curve; CI, confidence interval