In addition, we observed that blood emissions (p = 0.03; OR = 2.2; 95% CI = 1.1–4.6) and aspirin use (p = 0.005; OR = 1.86; 95% CI = 1.2–2.9) were found to be associated with XPD 2251A>C polymorphism, and history of thrombosis (p = 0.044; OR = 0.66; 95% CI = 0.41–0.99) was negatively associated with this SNP (Table 6). The gene discussed is ERCC2; the disease is deep vein thrombosis.