Adjusted odds ratio (AOR) and 95% CI for oral cancer associated with NFKB and NFKBIA genotypic frequencies and betel nut chewing among 598 smokers.

ORs with 95% CIs were estimated by logistic regression models. AORs with 95% CIs were estimated by multiple logistic regression models after controlling for age and sex.aPeople with wild genotype but not chewers of betel nut.bPeople with either one or more mutated genotypes, or chewers of betel nut (but not both).cPeople with at least one mutated genotype and also chewers of betel nut.