Three-factor model
| Group . | No. patients . | EFS . | OS . | P . |
|---|---|---|---|---|
| A | 40 | 0.83 | .90 | |
| B | 15 | 0.27 | .57 | |
| C | 10 | 0.10 | .25 | |
| EFS A vs B vs C | < .001 | |||
| OS A vs B vs C | < .001 |
| Group . | No. patients . | EFS . | OS . | P . |
|---|---|---|---|---|
| A | 40 | 0.83 | .90 | |
| B | 15 | 0.27 | .57 | |
| C | 10 | 0.10 | .25 | |
| EFS A vs B vs C | < .001 | |||
| OS A vs B vs C | < .001 |
Prognostic factors: B symptoms, extranodal disease, and CR duration less than 1 year. Group A, 0-1 factor; group B, 2 factors; group C, 3 factors.
EFS indicates event-free survival; OS, overall survival; CR, complete response.