From: Age-related changes in the BACH2 and PRDM1 genes in lymphocytes from healthy donors and chronic lymphocytic leukemia patients
Age
20–29
30–39
40–49
50–59
60–69
70–79
80-
Total
Healthy Donors
 Number
9
10
8
11
14
5
3
60
Chronic Lymphocytic Leukemia Patients
0
7
20
6
41