Table 2.

Relative risk according to clinical parameters and response to ESA.

Age	RR	0.65
	CI lower	0.28
	CI Upper	1.53
ECOG	RR	0.36
	CI lower	0.06
	CI Upper	2.17
Number of Cytopenias	RR	0.57
	CI lower	0.13
	CI Upper	2.54
% Blasts	RR	0.47
	CI lower	0.039
	CI Upper	5.7
BM Fibrosis	RR	0.38
	CI lower	0.029
	CI Upper	5.2
IPSS	RR	0.5
	CI lower	1.13
	CI Upper	1.92
Histology	RR	1
	CI lower	0.262
	CI Upper	3.82