. Author manuscript; available in PMC: 2016 Mar 1.

Published in final edited form as: Blood Rev. 2014 Dec 17;29(2):137–142. doi: 10.1016/j.blre.2014.12.003

Table 1.

Current prognostication systems for chronic myeloid leukemia.

Parameters	Sokal Risk Score	Hasford Risk Score	EUTOS score
Age (years)	0.116 (Age – 43.4)	0.666 when Age ≥50
Spleen (cm)	0.0345 (Spleen – 7.51)	0.042 x Spleen	0.0402 x Spleen
Platelet Count (x10⁹/L)	0.188 [(Plt/700)²−0.563]	1.0956 when Platlet ≥1500
Blood Myeloblasts (%)	0.0887 (Myeloblasts -2.10)	0.0584 x Myeloblasts
Blood Basophils (%)	-	0.20399 when Basophils >3%	0.07 x Basophils
Blood Eosinophils (%)	-	0.0413 x Eosinophils
Relative Risk	Exponential of the Total	Total x1000
Low Risk	<0.8	≤780	≤87
Intermediate Risk	0.8 – 1.2	781–1480
High Risk	>1.2	>1480	<87

Abbreviations: EUTOS, EUropean Treatment and Outcome Study.