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. 2013 Nov 15;110(46):783–790. doi: 10.3238/arztebl.2013.0783

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 – – – – –