How rare is it for a child to have acute lymphocytic leukemia?

2.8/100,000: Acute leukemia is the most common form of cancer in children, comprises approximately 30% of all childhood malignancies, with acute lymphoblastic leukemia being 5 times more common than acute myeloid leukemia. Approximately 2500 to 3500 new cases of all are diagnosed in children each year in the United States with an incidence of 2.8 cases per 100, 000.