Adjusted odds ratios (AORs) and 95% confidence intervals (CIs) of associations of VEGF-C 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.