Survival curves for acute and lymphoma types according to ATL-PI.
The prognostic score = 2 (if the stage = III or IV); + 1 (if the ECOG performance
status > 1); + 1 (if age > 70); + 1 (if albumin < 3.5 g/dL; + 1 (if sIL2R >
20,000 U/mL). Scores from 0 to 2 were categorized as low risk, 3 to 4 as intermediate
risk, and 5 to 6 as high risk.