Figure 2From: Can anti-cyclic citrullinated peptide antibody-negative RA be subdivided into clinical subphenotypes?Plots of the two major component loadings from PLS on the whole Leiden Early Arthritis Clinic ( n = 704). Each dot indicates one patient. Component scores indicate how strongly each component is represented in each patient. Patients positive for anti-CCP antibodies are blue, whereas negative patients are red. CCP, citrullinated peptide antibody; PLS, partial least squares regression.Back to article page