We also found a mutation site rs2069426 (C > A) in the non-exon sequence of CDKN2B. Rs2069426 (C > A) was found in 11 of 120 ALL specimens (9.2%) in this study and 2 of 100 specimens (2.0%) in the control group (P = 0.025, OR = 4.95, 95% CI: 1.070–22.863) (Table 1). Here, CDKN2B is linked to acute lymphoblastic leukemia.