IFNB1 and dermatomyositis: When we pooled the two cohorts, DM patient (n=99) harboured a strong correlation between disease activity and type-I IFN, (IFN-α (r=0.70 [0.58-0.79], p<0.001) (Figure 2A) and IFN-β (r=0.49 [0.31-0.63], p<0.01) (Figure 2B)).