 The incidence of AML increases with age ; the median age at diagnosis is 63 years . AML accounts for about 90 % of all acute leukemias in adults , but is rare in children . The rate of therapy @-@ related AML ( that is , AML caused by previous chemotherapy ) is rising ; therapy @-@ related disease currently accounts for about 10 – 20 % of all cases of AML . AML is slightly more common in men , with a male @-@ to @-@ female ratio of 1 @.@ 3 : 1 . 
