Table 1

Lung cancer risk associated with cruciferous vegetable consumption among nonsmokers, stratified by GSTM1 genotype

Cases/controlsCruciferous vegetable consumption OR (95% CI)aP for trend
LowMediumHigh
All individuals122/12310.58 (0.26, 1.32)0.64 (0.25, 1.67)0.35
GSTM1-positive57/6710.28 (0.08, 1.04)0.65 (0.16, 2.66)0.57
GSTM1-null62/5310.68 (0.20, 2.29)0.27 (0.06, 1.33)0.12
  • a ORs and 95% CIs were adjusted for age (four categories), sex, and center.