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

Approved by the Cancer.Net Editorial Board, 03/2016

ON THIS PAGE: You will find information about how many people are diagnosed with leukemia each year. You will also learn some general information on surviving the disease. Remember, survival rates depend on several factors. To see other pages, use the menu.

This year, an estimated 62,130 people of all ages (36,290 men and boys and 25,840 women and girls) in the United States will be diagnosed with leukemia.

CLL is the most common type of adult leukemia. An estimated 20,110 people (12,310 men and boys and 7,800 women and girls) in the United States will be diagnosed with CLL this year, though CLL is rare in children.

It is estimated that 4,660 deaths (2,880 men and 1,780 women) from CLL will occur this year. There are no current estimates for how many people develop PLL. HCL accounts for about 2% of all leukemia diagnoses.

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 with CLL is 83%. 

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. People should talk with their doctor if they have questions about this information. Learn more about understanding statistics.

Statistics adapted from the American Cancer Society's (ACS) publication, Cancer Facts and Figures 2017, and the ACS website.

The next section in this guide is Risk Factors. It explains what factors may increase the chance of developing this disease. Or, use the menu to choose another section to continue reading this guide.