Multivariate analysis on a Cox proportional hazard model.

HR, hazard risk of death; CI, confidence interval; NS, not significant; ECOG PS, Eastern Cooperative Oncology Group performance status; ISS, International Staging System; 24-h DPE, 24-hour daily protein excretion; 24-h Ccr, 24-hour creatinine clearance rate; BUN, blood urea nitrogen; Cr, creatinine; T Ca, serum total calcium; F Ca, serum free calcium; β2M, β2-microglobulin Multivariate analysis on a Cox proportional hazard model.