Leukemia--Chronic Lymphocytic

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What Is Leukemia - Chronic Lymphocytic (CLL)? TOPICS

What are the key statistics for chronic lymphocytic leukemia?

The American Cancer Society's estimates for leukemia in the United States for 2014 are:

  • About 52,380 new cases of leukemia and about 24,090 deaths from leukemia (all kinds)
  • About 15,720 new cases of chronic lymphocytic leukemia (CLL)
  • About 4,600 deaths from CLL

CLL accounts for about one-third of the new cases of leukemia. The average person's lifetime risk of getting CLL is about ½ of 1% (about 1 in 200). The risk is slightly higher in men than in women. Factors such as having a family history of CLL may raise this risk.

CLL mainly affects older adults. The average age at the time of diagnosis is around 72 years. It is rarely seen in people under age 40, and is extremely rare in children.


Last Medical Review: 07/31/2013
Last Revised: 04/18/2014