Table 3.
Variable | Control (n)a | Case (n)a | OR (95% CI) | p-Value |
---|---|---|---|---|
Overall | 0.67 ± 0.67 (2,725) | 0.70 ± 0.67 (2,522) | 1.10 (1.01, 1.20) | 0.045b |
Smoking statusc | ||||
Never smokers | 0.60 ± 0.63 (633) | 0.70 ± 0.64 (138) | 1.41 (1.05, 1.91) | 0.024d |
Former smokers | 0.67 ± 0.68 (1,125) | 0.72 ± 0.69 (1,204) | 1.08 (0.95, 1.24) | 0.24d |
Current smokers | 0.70 ± 0.68 (967) | 0.67 ± 0.66 (1,180) | 1.06 (0.92, 1.22) | 0.43d |
Histology | ||||
Adenocarcinoma | 0.67 ± 0.67 (2,725) | 0.72 ± 0.69 (986) | 1.16 (1.04, 1.31) | 0.0091d |
Squamous cell carcinoma | 0.67 ± 0.67 (2,725) | 0.69 ± 0.67 (582) | 1.08 (0.93, 1.25) | 0.33d |
Small cell | 0.67 ± 0.67 (2,725) | 0.62 ± 0.65 (256) | 0.90 (0.73, 1.11) | 0.32d |
Others | 0.67 ± 0.67 (2,725) | 0.70 ± 0.67 (698) | 1.04 (0.91, 1.19) | 0.59d |
Abbreviations: CI, confidence interval; GENEVA, Gene Environment Association Studies; OR, odds ratio. aA allele dosage for rs1800797 presented as mean ± standard deviation. bAdjustment for age, sex, smoking status, pack-years, and cohort was included in logistic regression models. cThe interaction terms between never versus current smokers and rs1800797 and between former versus current smokers and rs1800797 were included together in the logistic regression with statistical significance identified for both interaction terms (p-values = 0.050 and 0.029, respectively). dAdjustment for age, sex, pack-years, and cohort was included in logistic regression models. |