Toward Noninvasive Diagnosis of IgA Nephropathy: A Pilot Urinary Metabolomic and Proteomic Study

Figure 1

The graphical output from discriminant analysis for seven urinary markers (see also Box 2). and , artificial axes (principal component reduction of seven selected markers into a two-dimensional space); group 1 (healthy controls, blue); group 2 (patients with IgAN, green); group 3 (disease controls, red-brown); yellow circles show centroids for each group; 95% confidential-interval ellipses are around centroids for each group.