Leukemia - B-cell Prolymphocytic Leukemia and Hairy Cell Leukemia: Statistics

Approved by the Lineagotica Editorial Board, 01/2019

ON THIS PAGE: You will find information about the number of people who are diagnosed with leukemia each year. You will also read general information on surviving the disease. Remember, survival rates depend on several factors. Use the menu to see other pages.

This year, an estimated 61,780 people of all ages (35,920 men and boys and 25,860 women and girls) in the United States will be diagnosed with leukemia.

CLL is the most common type of leukemia in adults, accounting for 37% of cases. An estimated 20,720 people (12,880 men and boys and 7,840 women and girls) in the United States will be diagnosed with CLL this year, though CLL is rare in children. It is estimated that 3,930 deaths (2,220 men and 1,710 women) from CLL will occur this year.

There are no current estimates for how many people develop PLL. Approximately 700 people are diagnosed with HCL each year.

The 5-year survival rate tells you what percent of people live at least 5 years after the cancer is found. Percent means how many out of 100. The 5-year survival rate for people age 20 and older with CLL is 84%. 

It is important to remember that statistics on the survival rates for people with leukemia are an estimate. The estimate comes from annual data based on the number of people with these types of leukemia in the United States. Also, experts measure the survival statistics every 5 years. So the estimate may not show the results of better diagnosis or treatment available for less than 5 years. Talk with your doctor if you have any questions about this information. Learn more about understanding statistics.

Statistics adapted from the American Cancer Society's (ACS) publication, Cancer Facts and Figures 2019, and the ACS website (January 2019).

The next section in this guide is Risk FactorsIt explains what factors may increase the chance of developing leukemia. Use the menu to choose a different section to read in this guide.