IL6 and familial dilated cardiomyopathy: Compared with that in the TAA group, the IL-6 levels in the DCM-L, DCM-H, SCM, D, AS, and CC groups were reduced by 37% (p < 0.001), 45% (p < 0.001), 33% (p < 0.001), 31% (p < 0.001), 51% (p < 0.001), and 57% (p < 0.001), respectively.