Univariate analysis showed that pathological subtype was not significantly associated with the 3-year OS rate (94.0% for ALK + ALCL, 86.2% for ALK − ALCL, 77.4% for AITL, 69.9% for PTCL-NOS and other subtypes; p = 0.207; Fig. 2a). This evidence concerns the gene ALK and mature T-cell and NK-cell non-Hodgkin lymphoma.