In 2011, leukemia
was expected to strike more than 10 times as many adults versus children
and adolescents in the us.
It tends to occur in the older population with a median age of 66. Different kinds of leukemia occur at different rates in various age groups. Acute lymphocytic leukemia is more common in children whereas acute myeloid leukemia and the chronic leukemias are seen more among adults.