While LVMI was found to be directly associated with the expression of DDX3X (r = 0.727, P = 0.017) and inversely related with the expression of NFKB2 (r = −0.643, P = 0.045) and FHL3 (r = −0.765, P = 0.01) in the ICM group, a significant positive relationship was observed with the expression of ARL4 (r = 0.776, P = 0.040) and NFKB2 (r = 0.769, P = 0.044) in the DCM group. Here, DDX3X is linked to familial dilated cardiomyopathy.