Abstract
Background
Large-scale epidemiological studies on pancreatic cancer in non-Western populations are insufficient. We investigated the risk factors for pancreatic cancer.
Methods
Using the Korean National Health Insurance database, subjects who participated in the health examination program between 2005 and 2006 were identified and followed up until 2017. Adjusted hazard ratios (HRs) for pancreatic cancer risk were estimated using a Cox proportional hazards model.
Results
During 11.5 years follow-up, 22,543 of 7,445,947 participants were newly diagnosed with pancreatic cancer. Compared with normal-weight subjects, pancreatic cancer risk was increased in those with severe obesity (BMI ≥ 28 kg/m2) (HR = 1.16; 95% CI, 1.11–1.23). Subjects with diabetes had an increased risk compared with those without diabetes (HR = 1.48; 95% CI, 1.43–1.53). Current smokers had a higher risk than never smokers (HR = 1.43; 95% CI, 1.38–1.48). Current smoking combined with diabetes increased the risk compared with never smokers without diabetes (HR = 2.13; 95% CI, 2.00–2.28). Current smoking combined with BMI ≥ 25 kg/m2 had an increased risk compared with never smokers with BMI < 23 kg/m2 (HR = 1.55; 95% CI, 1.46–1.65).
Conclusion
Smoking, obesity, and diabetes are significant risk factors for pancreatic cancer in Koreans. Lifestyle modifications for smoking and obesity would be beneficial for pancreatic cancer prevention.
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Data availability
This study’s data are available from the corresponding author, upon reasonable request.
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Acknowledgements
This study used the NHIS 2002–2017 database (NHIS 2021-1-242), made by the National Health Insurance Service. The authors alone are responsible for the content and writing of the paper.
Funding
This work was supported by the National Health Insurance Ilsan Hospital grant (NHIMC 2019-20-005).
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BKP and JHS designed the paper and performed the interpretation. BKP wrote the manuscript. JBC supervised the development of the work and helped in data interpretation and manuscript evaluation. JKC performed the statistical analysis. All authors read and approved the manuscript and agree to be accountable for all aspects of the research in ensuring that the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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This study was approved by the Institutional Review Board of the National Health Insurance Service Ilsan Hospital (NHIMC 2020-11-016). Informed consent was waived by the board because anonymous raw data were obtained from the National Health Insurance Service of Korea. The study was done in accordance with the Declaration of Helsinki.
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Park, B.K., Seo, J.H., Chung, J.B. et al. Lifestyle, body mass index, diabetes, and the risk of pancreatic cancer in a nationwide population-based cohort study with 7.4 million Korean subjects. Br J Cancer 127, 549–557 (2022). https://doi.org/10.1038/s41416-022-01807-5
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DOI: https://doi.org/10.1038/s41416-022-01807-5