Figure 2: EarlyRA adapted to the custom array successfully separates rheumatoid arthritis (RA) samples from non-rheumatoid arthritis (non-RA) and control samples (healthy). A higher score (0–1) indicates a higher likelihood of RA. N=7 for RA (4 seropositives and 3 seronegatives, three were additionally run in duplicates for 10 runs total), N=4 for non-RA. In total ten healthy control samples were run (Controls).