Table 1 Patient characteristics, treatment modalities, and outcomes.
a)Elevated LDH: >250 IU/L.
Abbreviations: ECOG PS, Eastern Cooperative Oncology Group Performance Status; IPI, International Prognostic index; LDH, lactate dehydrogenase; R-CHOP, rituximab+cyclophosphamide+doxorubicin+vincristine+prednisolone; CNS, central nervous system.