Table 3. Stratification analysis for associations between BCL2 rs1564483 (c*1204G>A) genotypes and risk of lung cancer.

Variables	GG	GA		AA		GA+AA		P trend	P interaction
	OR	OR(95%CI)	P	OR(95%CI)	P	OR(95%CI)	P
Age									0.008
≤60	1.00	0.91(0.68–1.21)	0.519	0.77(0.50–1.17)	0.214	0.88(0.67–1.15)	0.343	0.220
>60	1.00	0.66(0.49–0.88)	0.005	0.71(0.46–1.09)	0.116	0.67(0.51–0.88)	0.004	0.017
Smoking status									0.659
Never-smokers	1.00	0.72(0.48–1.10)	0.126	0.75(0.40–1.41)	0.375	0.73(0.49–1.08)	0.117	0.188
Smokers	1.00	0.83(0.67–1.04)	0.109	0.75(0.54–1.03)	0.076	0.81(0.66–1.00)	0.049	0.043
Pack-years smoked									0.913
≤26	1.00	0.79(0.54–1.15)	0.223	0.90(0.53–1.53)	0.704	0.82(0.57–1.16)	0.263	0.452
>26	1.00	0.81(0.61–1.08)	0.152	0.67(0.44–1.02)	0.062	0.78(0.59–1.02)	0.073	0.044
Family history of cancer									0.124
No	1.00	0.74(0.60–0.92)	0.006	0.71(0.52–0.97)	0.030	0.73(0.60–0.90)	0.003	0.005
Yes	1.00	1.34(0.62–2.90)	0.453	0.96(0.29–3.27)	0.959	1.26(0.61–2.61)	0.534	0.743

Note: ORs and P values were obtained from logistic regression models with adjustment for age, smoking status, pack-year smoked, and family history of cancer.