Table IV.

Results for SNP rs2930961 on RAD54B gene using unconditional logistic regression

Stratum	Sample size		C/T versus T/T genotype		C/C versus T/T genotype		Log-additive model		P
	Cases	Controls	OR	95% CI	OR	95% CI	OR	95% CI
Smoking status
Never-smokers	255	1613	0.79	0.59–1.05	0.43	0.25–0.73	0.71	0.71–0.87
Ever-smokers	2366	2535	1.11	0.98–1.25	1.13	0.94–1.36	1.08	0.99–1.17
Interaction							1.52	1.21–1.90	2.31 × 10−4

CI, confidence interval; P, P-value for rs2930961 × tobacco interaction adjusting on study, age, sex and pack-years (coded quantitatively).