BMI was, however, a potential effect modifier for the association between MCP1 and pancreatic cancer (P value for interaction = 0.03) with the positive association seen only among women with BMI <25 kg/m2 (aORQ4 vs Q1 = 2.55, 95% CI: 1.41–4.61). The gene discussed is CCL2; the disease is familial pancreatic carcinoma.