adjustment was made for cigarettes smoked per day for rs931794 and rs1051730. None of the SNPs were associated with lung cancer among never smokers (Table 4). In the subset of ever smokers, ORs associated with risk of lung cancer were 1.18–1.36 in whites and 1.18–1.71 in African Americans before adjusting for smoking amount. Risk estimates decreased and were no longer statistically significant in whites after adjustment for cigarettes smoked per day, but similar decreases in risk were not observed among African Americans for rs931794 and rs1051730. In models including race, race was a significant predictor of risk independent of genotype, and there was a significant interaction between race and genotype for rs1051730 (p = 0.04).
