OS by clinical parameters. (A) OS by PS (P = .006). (B) OS by neutrophil count (P = .05). The unit is ×10⁹/L. (C) OS by LDH level (P = .004). NI indicates normal index. (D) OS by PPFs for chronic ATL that were defined based on low serum albumin, high LDH, or high BUN according to previous reports^13,14  (P = .05). (E) OS by the number of extranodal lesions (EXNL; P = .005). (F) OS by treatment states (P = .01).