Table 3

Distribution of NAT2 genotype among incident breast cancer cases and controls

NAT2 genotypeCases (n = 174)Controls (n = 387)
No.PercentageaNo.Percentagea
Slow acetylator
NAT2*5A/*5A 1 0.600
NAT2*5A/*5B 7 4.082.1
NAT2*5B/*5B 28 16.16717.3
NAT2*5B/*5C 2 1.251.3
NAT2*5B/*5D 1 0.600
NAT2*5A/*6A 4 2.361.6
NAT2*5B/*6A 32 18.48521.7
NAT2*5C/*6A 0 030.8
NAT2*5A/*7B 0 010.3
NAT2*5B/*7B 0 041.0
NAT2*6A/*6A 16 9.2318.0
NAT2*6A/*7B 1 0.620.5
NAT2*7B/*14B 0 010.3
Total slow acetylator 92 52.921355.0
Intermediate acetylator
NAT2*4/*5A 5 2.951.3
NAT2*4/*5B 34 19.58020.7
NAT2*4/*5C 2 1.271.8
NAT2*4/*6A 27 15.54511.6
NAT2*4/*7B 3 1.761.6
NAT2*5B/*12A 0 010.3
NAT2*6A/*12A 1 0.610.3
NAT2*5B/*13 0 010.3
NAT2*5C/*13 0 020.5
NAT2*6A/*13 0 020.5
NAT2*7B/*13 0 010.3
Total intermediate acetylator 72 41.415139.0
Rapid acetylator
NAT2*4/*4 9 5.2215.4
NAT2*4/*12A 1 0.610.3
NAT2*4/*13 0 010.3
Total rapid acetylator 10 5.7235.9
  • a (Participants with genotype/total cases or controls) × 100.