The association between use of statin or aspirin and pancreatic ductal adenocarcinoma: A nested case-control study in a Korean nationwide cohort

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Abstract

Background: Although several studies have suggested that aspirin and statins may help prevent pancreatic ductal adenocarcinoma (PDAC), this concept has been controversial. This study aimed to evaluate the association between use of statin or aspirin and PDAC in a nationwide large cohort. Methods: In this nested case-control study, we used data from a 12-year nationwide longitudinal cohort in Korea. Cases with PDAC and controls who were matched to cases by age, sex, income, and index year at a 1:5 ratio were established. We used multivariate logistic regression analyses to identify the independent risk factors of PDAC. Results: We identified a total of 827 patients with PDAC between 2007 and 2013, and included 4135 matched controls. Diabetes mellitus, chronic and acute pancreatitis, pancreatic cystic lesions, and cholelithiasis were independent risk factors for PDAC. Statin use (odds ratio [OR], 0.92; 95% confidence interval [CI] 0.76-1.11; P =.344; adjusted OR [aOR], 0.70; 95% CI 0.56-0.87; P =.001) was associated with a reduced risk of PDAC after correction of the confounding factors, but aspirin use (OR, 0.98; 95% CI 0.84-1.15; P =.838; aOR 0.84; 95% CI 0.70-1.01, P =.068) was not associated with PDAC. Among the patients with risk factors, both statin use (OR, 0.50; 95% CI 0.38-0.66; P

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Choi, J. H., Lee, S. H., Huh, G., Chun, J. W., You, M. S., Paik, W. H., … Kim, Y. T. (2019). The association between use of statin or aspirin and pancreatic ductal adenocarcinoma: A nested case-control study in a Korean nationwide cohort. Cancer Medicine, 8(17), 7419–7430. https://doi.org/10.1002/cam4.2617

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