IL31 and familial dilated cardiomyopathy: The median and IQR of 2−△ct result among 41 DCM patients were 0.072 (0.044–0.144), while it was 0.036 (0.020–0.052) among 49 controls, and the difference for IL-31 WBC mRNA expression between DCM group (n = 41) and control group (n = 49) was statistically significant (P < 0.001) as shown in Figure 1(a).