Table 1. Baseline patient characteristics.

^a)One patient with LPL/WM was excluded because of missing data for β2-MG. ^b)Two patients with LPL/WM were excluded because of missing data for cytogenetics.

Abbreviations: β2-MG, beta2-microglobulin; BM, bone marrow; ECOG PS, Eastern Cooperative Oncology Group Performance Status; ISSWM, International Prognostic Scoring System for Waldenström's Macroglobulinemia; LDH, lactate dehydrogenase; LPL, lymphoplasmacytic lymphoma; WM, Waldenström's macroglobulinemia.