APOBEC3B and breast cancer: As shown in Figure 3A, our meta-analysis revealed the consistent association of the APOBEC3B deletion with breast cancer in Asian populations [OR(95%CI)=1.367(1.282-1.458), p<0.001], but in European populations, the effect of the APOBEC3B deletion was much smaller and not significant [OR(95%CI)=1.102(0.995-1.221), p=0.063].