Table 1. IPSS 8 . Score . . 0 . 0.5 . 1... | American Society of Hematology

Table 1.

IPSS⁸

	Score
	0	0.5	1	1.5	2.0
Medullary blasts, %	0-4	5-10	—	11-20	21-29
Number of cytopenias*	0-1	2-3	—	—	—
Cytogenetic risk group†	Low	Intermediate	High	—	—

	Score
	0	0.5	1	1.5	2.0
Medullary blasts, %	0-4	5-10	—	11-20	21-29
Number of cytopenias*	0-1	2-3	—	—	—
Cytogenetic risk group†	Low	Intermediate	High	—	—

†

Low risk = normal karyotype, 5q-, 20q-, -Y; intermediate risk = all other aberrations; High risk = complex karyotype (≥3 anomalies), chromosome 7 anomalies.

Platelets <100 000/μL; hemoglobin <10 g/dL, absolute neutrophil count <1 800/μL.

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