Research Article

Blood Genomics Identifies Three Subtypes of Systemic Lupus Erythematosus: “IFN-High,” “NE-High,” and “Mixed”

Figure 1

Analysis of signature in discovery set. (a) Correlation score permutation analysis. Null distribution generated by randomly permuting the expression profile 1000 times and identifying the number of values for differences that were also significant (). The red line indicates the number of values for significant differences in 1000 tests. (b) Heat map of signature in discovery set. 405 samples composing the SLE cohort were clustered using 92 genes. The column annotations across the top provide the distribution of the two queues (Group, State), and rows are fixed by biologically relevant gene sets. The heat map shows that samples from one data site are not clustered together, indicating limited batch effects.
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