XRCC3 and non-small cell lung carcinoma: However, in diplotype analyses of a Chinese case control study on non-small-cell lung cancer (NSCLC), an XRCC3 rs1799794 A allele on haplotypes composed of rs861539–rs1799796–rs861537–rs1799794 was associated with an increased NSCLC risk regardless of the A or G alleles on rs861537, although subjects with rs861537 AA or AG genotypes showed increased ORs for NSCLC in genotype analyses [42].