Table I.

Distribution of blood donation offers by age and sex of the potential donors.

Age (years)	Women	%	Men	%	Total	%
18–30	8,805	10.1	6,421	7.3	15,226	17.4
31–40	11,301	12.9	14,053	16.0	25,354	28.9
41–50	12,326	14.1	15,038	17.2	27,364	31.3
51–60	5,861	6.7	7,962	9.1	13,823	15.8
>60	2,463	2.8	3,371	3.8	5,834	6.6
Total	40,756	46.5	46,845	53.5	87,601	100