Probability of Developing Leukemia
1 in 64 (1.6%)
Lifetime probability in US
About 1.6% of Americans will be diagnosed with leukemia at some point in their lifetime, encompassing several subtypes.
Leukemia, a group of blood cancers affecting the bone marrow and blood, has a lifetime risk of approximately 1.6% in the United States. Unlike most solid tumors, leukemia can occur at any age, with certain types more common in children (acute lymphoblastic leukemia) and others in older adults (chronic lymphocytic leukemia).
Risk factors vary by subtype but include prior chemotherapy or radiation treatment, certain genetic disorders (Down syndrome, Fanconi anemia), exposure to benzene and other industrial chemicals, smoking, and family history. Most cases, however, have no identifiable cause.
Treatment has advanced dramatically, particularly for childhood acute lymphoblastic leukemia, where 5-year survival now exceeds 90%. For all leukemias combined, the 5-year survival rate is approximately 66%. Treatments include chemotherapy, targeted therapy (such as tyrosine kinase inhibitors for chronic myeloid leukemia), immunotherapy, and stem cell transplant.
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