Table 1.

Baseline characteristics of cases and control subjects

Cases (n = 511)Controls (n = 511)P for difference*
Age (matching factor)57.4 (0.32)57.4 (0.32)1.00
Male (matching factor; %)66.866.81.00
Current smoker (%)35.730.30.06
Alcohol drinking, 1+ d/wk (%)50.850.20.85
Body mass index23.0 (0.13)23.4 (0.13)0.02
Family history of gastric cancer (%)11.97.80.03
  • NOTE: Numbers are mean (SE) unless specified otherwise.

  • * χ2 test or one-way ANOVA.