Table 4.

Response and Survival by Grade 3–4 Anemia

Stage	Grade 3–4 Anemia	No.	% MCyR	% CCyR	EFS, % at 7 Years (95% CI)	OS, % at 7 Years (95% CI)
ECP	Yes	32	81	81	80 (66–94)	90 (79–100)
	No	275	93a	87a	72 (66–78)	88 (83–93)
	P		.03	.37	.91	.56
LCP	Yes	30	53	40	25 (8–42)	55 (37–74)
	No	271	80b	75b	65 (59–71)	82 (77–86)
	P		.0007	.0001	.00006	.001

MCyR indicates major cytogenetic response; CCyR, complete cytogenetic response; EFS, event-free survival; CI, confidence interval; ECP, early chronic phase; LCP, late chronic phase.

^aFrom 269 evaluable patients.

^bFrom 266 evaluable patients.