Genotype and allele frequencies of the NFKB1 promoter -94 ins/del ATTG polymorphism among the bladder cancer cases and controls.

Abbreviations: CI, confidence interval; OR, odds ratio.aTwo-sided χ2 test for either genotype distributions or allele frequencies between the cases and controls.bAdjusted for age, gender, smoking, drinking status and family history of cancer in logistic regression model.