Definition of the revised International Prognostic Scoring System (IPSS-R) (21).
| Score | 0 | 0.5 | 1 | 1.5 | 2 | 3 | 4 | |
|---|---|---|---|---|---|---|---|---|
| Cytogenetic risk group | Very good | – | Good | – | Intermediate | Poor | Very poor | |
| Bone marrow blasts | <2% | – | 3–4% | – | 5–9% | >10% | – | |
| Hemoglobin g/dL | >10 | – | 8–<10 | <8 | – | – | – | |
| Platelets/μL | >100 | 50–<100 | <50 | – | – | – | – | |
| Granulocytes/μL | >800 | <800 | – | – | – | – | – | |