Adjusted odds ratios (AORs) and 95% confidence intervals (CIs) of associations of <i>VEGF-C</i> genotypic frequencies and smoking with male oral cancer among 461 betel-nut consumers.

Odds ratios with their 95% confidence intervals were estimated by logistic regression models. Adjusted odds ratios with their 95% confidence intervals were estimated by multiple logistic regression models after controlling for age and alcohol consumption. aIndividuals with the wild-type genotype who do not smoke. bIndividuals with either at least one mutated genotype or who smoke. cIndividual with both at least one mutated genotype and who smoke.