NR5A2 and familial pancreatic carcinoma: Poor oral hygiene was associated with a more significantly elevated risk of pancreatic cancer among carriers of the NR5A2 rs2816938 AT or AA genotype (OR for 1 point increment of the oral hygiene score = 2.83, 95% CI: 1.65–4.84) compared to those with the TT genotype (OR for 1 point increment of the oral hygiene score = 1.57, 95% CI: 1.30–1.90).