Table 2

Distribution of mutagen sensitivity in cases and controls

Bleomycin Colorectal cancer (%) Control (%) Odds ratio
Resistant28 (53.8)97 (76.4)1
Sensitive14 (26.9)21 (16.5)2.31
Hypersensitive10 (19.2)9 (7.1)3.85
  • χ2 trend=9.72, p<0.01.