The results indicated that blue module was positively correlated with cardioembolic stroke (r = 0.86, p = 1e − 27), neutrophils (r = 0.64, p = 4e − 12), and macrophages M0 (r = 0.4, p = 8e − 05), and negative correlations were observed between blue modules and B cells naive (r = −0.58, p = 9e − 10) and blue modules and T cells CD8 (r = −0.45, p = 7e − 06) (Figure 8(a)). This evidence concerns the gene CD8A and cardioembolic stroke.