Figure 7.

Current smokers with a faster CYP2A6 metabolizer status were at a higher risk for a younger age of diagnosis. Kaplan-Meier curves for: (A) cancer of bronchus (lung), and (B) obstructive chronic bronchitis. Faster metabolizers were defined as those with a genetic risk score of ≥2.14 while slower metabolizers were defined as those with a genetic risk score of <2.14. Number at risk were participants remaining in the study at each time point who did not yet attain a diagnosis nor were censored. No covariates were used in this analysis.