A: Overall survival of peripheral T-cell lymphoma, unspecified (PTCLUS) according to the International Prognostic Index; B: Overall survival of PTCLUS according to proposed new prognostic index (age > 60, performance status > 2, elevated LDH, bone marrow involvement).

Low risk: 0, 1, 5 y OS 59%; low-intermediate risk: 2, 5 y OS 46%; high-intermediate risk: 3, 5 y OS 40%; high-risk: 18%; P < .0001. Group 1: 0 factors, 5 y OS 62%; group 2: 1 factor, 5 y OS 53%; group 3: 2 factors, 5 y OS 33%; group 4: 3 or 4 factors, 5 y OS 18%; P < .0001.

Abbreviations: LDH, lactate dehydrogenase.

Originally published in Blood. Reprinted from Gallamini A, Stelitano C, Calvi R, et al⁸ with permission from the American Society of Hematology.