CD79A and dermatomyositis: Moreover, IgA levels were elevated in the PH‐DM (median [IQR]; 2.34 [1.76–2.86] g/L) than in the Non‐PH‐DM (median [IQR]; 2.07 [1.42–2.78] g/L (p = 0.045) (Table 4).