Fig. 9From: Real-world data in rheumatoid arthritis: patient similarity networks as a tool for clinical evaluation of disease activityDistribution of LDL-cholesterol (low-density-lipoprotein cholesterol) in the final PSN. The distribution of LDL-cholesterol is visualized on a light-to-dark scale. The trend is visually very similar to that of total cholesterol (Fig. 8), but removing LDL-cholesterol from the network reduces its quality. This shows how a purely visual assessment fails to discern data in multivariate analysisBack to article page