Table 2

ORs for the association of breast cancer with combinations of NAT1*10 and NAT1*11 genotypes and smoking

NAT1 genotype
NAT1*4/*4, *3/*4, *3/*3NAT1*10/any genotypeNAT1*11/any genotype
Cases/controlsOR (95% CI)aCases/controlsOR (95% CI)aCases/controlsOR (95% CI)a
Whites
Smoking status
Never79/78Referent52/511.0 (0.6–1.6)4/50.7 (0.2–2.7)
Ever97/851.1 (0.7–1.8)56/521.1 (0.6–1.7)2/60.3 (0.1–1.7)
African-Americans
Smoking status
Never32/30Referent79/870.7 (0.4–1.4)0/0NAb
Ever26/171.3 (0.6–3.0)62/581.0 (0.6–2.0)0/0NA
  • a Adjusted for age and family history.

  • b NA, not applicable.