No Association Between Base Excision Repair Gene Polymorphisms and Risk of Lung Cancer

In a nested case–cohort study, we have investigated the occurrence of lung cancer in relation to polymorphisms in base excision repair genes XRCC1 and OGG1. Among 54,220 members of a Danish prospective cohort study, aged 50–65 years at entry, 265 lung cancer cases were identified and a subcohort comprising 272 individuals was used for comparison. No associations were found between the polymorphisms OGG1 Ser326Cys, XRCC1Arg280His, and XRCC1 Arg399Gln and risk of lung cancer. This is the first study of polymorphisms in base excision repair genes in relation to lung cancer among Danes.