MAFB and hypercalcemia disease: For OS in NDMM patients, univariate analysis suggested that Age≥65, Albumin ≤ 35, Hypercalcemia, elevated LDH level, ISS III, R-ISS III, Gain 1q21, del 17p, MAF/IGH or MAFB/IGH, ASCT and VD/β-CTX at the time of MM diagnosis were risk factors.