Survival Curves From Diagnosis Using the Kaplan-Meier Method for Patients With Multiparametric Flow Cytometry Immunophenotyping at Diagnosis. (A) Progression-free survival (PFS) stratified by monotypic plasma cells (PCs) cutoff at 2.5%. (B) Overall survival stratified by monotypic PCs cutoff at 2.5%. (C) PFS stratified by polytypic PCs (pPCs)/bone marrow PCs (BMPCs) ratio cutoff at 5%. (D) Overall survival stratified by pPCs/BMPCs ratio cutoff at 5%.