Survey of blood donors in Sri Lanka, 1985

Of 26,932 blood donors at the Central Blood Bank and at three mobile units that covered most parts of the Island during 1985, 81.4% were men and 18.6% women. The age range acceptable for blood donations is 18 to 55 years. The largest number of donors in both sexes were in the 21 to 30 year age group, with the next common group being 31 to 40 years for men and 18 to 20 years for women.