Table 103-4 Risk Stratification for Idiopathic Myelofibrosis A. Prognostic factorsa Hemoglobin 30,000/µL Number of prognostic factors Risk group Median survival (months) 0 Low 93 1–2 High 17 B. Prognostic factorsb Hemoglobin 1% Number of prognostic factors Risk group Median survival (months) 0–1 Low 99 2–3 High 21 C. factorsc Prognostic Median survival (months) Age 10 gm% Karyotype: Normal 180 Abnormal 72 Age 65 years Hemoglobin ≤10 gm% Karyotype: Normal 44 Abnormal 16 Age 65 years Hemoglobin 10 gm% Karyotype: Normal 70 Abnormal 78 a From B Dupriez et al. Blood 88:1013, 1996. b From F Cervantes et al. Br J Haematol 102:684, 1998. . | Chapter 103. Polycythemia Vera and Other Myeloproliferative Diseases Part 7 Table 103-4 Risk Stratification for Idiopathic Myelofibrosis A. Prognostic factors Hemoglobin 10 gm White cell count 4000 gL or 30 000 gL Number of prognostic Risk group Median survival factors months 0 Low 93 1-2 High 17 B. Prognostic factors Hemoglobin 10 gm Constitutional symptoms Blast cells 1 Number of prognostic factors Risk group Median survival months 0-1 Low 99 2-3 High 21 C. Prognostic factorsc Median survival months Age 65 years Hemoglobin 10 gm Karyotype Normal 54 Abnormal 22 Age 65 years Hemoglobin 10 gm Karyotype Normal 180 Abnormal 72 Age 65 years
