Moreover, the rs6887695 genotype of IL12A was significantly different in four stages under codominant, recessive, additive and allele models (p < 0.05), and the risk of progression of lymphoma with C allele was much lower than that of the G allele (OR = 0.529, 95% CI = 0.280–1.001, p = 0.048), indicating that genotype G is a risk factor for lymphoma progression (Table 4). This evidence concerns the gene IL12A and lymphoma.