In the whole cohort and in the three MM isotypes, we then calculated the medians of some prognostic predictors: albumin (all MM 36.39 g/L, LCMM 39.90 g/L, IgA 33.85 g/L and IgG 37.00 g/L), beta2-MG (all MM 4.70 mg/L, LCMM 4.40 mg/L, IgA 4.490 mg/L and IgG 4.70 mg/L), RDW (all MM 15.1%, LCMM 14.4%, IgA 16% and IgG 14.8%), and BMPC (all MM 40%, LCMM 40%, IgA 60% and IgG 30%) (Supplementary Table S1). Here, ALB is linked to Miyoshi myopathy.