Figure 1.

Multivariate Cox model (right) with stepwise backward elimination process: variables introduced in the first step (baseline eGFR, history of AKI, preexisting–CKD, hypertension, ACE‐ inhibitors/ARB, micromolecular MM, MM and amyloidosis, lambda light chain, serum β2M, MM stage IIIB, mucositis grade 3/4), variables remained in the final step (preexisting–CKD, serum β2M, mucositis grade 3/4); P < 0.05, statistically significant. HR, hazard ratio; eGFR, estimated glomerular filtration ratio; AKI, acute kidney injury; CKD, chronic kidney disease; ACE, angiotensin converting enzyme; ARB, angiotensin receptor blockers; MM, multiple myeloma; β2M, β2 microglobulin