Table 6. Utilization rates of ESAs according to G category and age strata.

		18–44 Y	45–64 Y	65–74 Y	75–84 Y	≥85 Y	Subtotal
G3a	%	0.1	0.1	0.0	0.0	0.1	0.0
G3b	%	2.2*	0.8*	0.8*	0.6*	0.7*	0.7*
G4	%	10.7*	7.2*	5.8*	9.0*	8.5*	7.9*
G5	%	23.8†*	16.3*	23.9†*	29.0†*	16.9*	22.4*
G4+G5	%	16.4†*	10.8*	11.6*	13.7*	9.6*	12.1*

Utilization rates are expressed as % of each population.

*:p<0.05 vs. G3a

†:p<0.05 vs. 45–64 Y.

Abbreviation: ESA, erythropoiesis-stimulating agent.