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Risk grouping and survival rate of FLIPI2
| Risk group | Score | 5-year OS rate (%) | 5-year PFS (%) |
| FLIPI, folicullar lymphoma international prognostic index; OS, overall survival; PFS, progression-free survival. | |||
| Low risk | 0 or 1 | 98 | 79 |
| Medium risk | 2 | 88 | 51 |
| High risk | 3−5 | 77 | 20 |
