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Figure 3 | Arthritis Research & Therapy

Figure 3

From: International cohort study of 73 anti-Ku-positive patients: association of p70/p80 anti-Ku antibodies with joint/bone features and differentiation of disease populations by using principal-components analysis

Figure 3

Principal-component analysis of the presence of 10 antibodies and 19 clinical signs for 57 patients diagnosed with SSc, SLE, or UCTD. The plot is based on principal components 1 and 3, which explain 18.96% and 8.74% of the total variance of the data, respectively. The individual disease populations are circumscribed by an ellipse representing an 87% confidence level.

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