SMZL IIL prognostic score
| Risk factors |
| Hb < 12 g/dL |
| LDH level higher than normal |
| Albumin level < 3.5 g/dL |
| Score classes |
| Low risk: no risk factors (83% 5-year OS*) |
| Intermediate risk: 1 risk factor (72% 5-year OS*) |
| High risk: 2 or more risk factors (56% 5-year OS*) |
| Risk factors |
| Hb < 12 g/dL |
| LDH level higher than normal |
| Albumin level < 3.5 g/dL |
| Score classes |
| Low risk: no risk factors (83% 5-year OS*) |
| Intermediate risk: 1 risk factor (72% 5-year OS*) |
| High risk: 2 or more risk factors (56% 5-year OS*) |
IIL indicates Intergruppo Italiano Linfomi; Hb, hemoglobin; LDH, lactate dehydrogenase; and OS, overall survival.
95% confidence interval.