Survivals of patients with NK/T-cell lymphoma treated with the SMILE regimen. (A) OS for the whole cohort. Dotted lines represent 95% confidence intervals. (B) DFS for the whole cohort. Dotted lines represent 95% confidence intervals. (C) Significant impact of IPI on OS. (D) Significant impact of bone marrow (BM) infiltration on OS for newly diagnosed patients. (E) Significant impact of IPI on DFS. (F) Significant impact of initial site of presentation on DFS for newly diagnosed patients. (G) Significant impact of BM infiltration on DFS for newly diagnosed patients. (H) Significant impact of performance status (PS) on DFS for relapsed/refractory patients.