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. 2022 Nov 21:15:17562848221137430.
doi: 10.1177/17562848221137430. eCollection 2022.

Risk of prostate cancer in patients with inflammatory bowel disease: a nationwide cohort study in South Korea

Ji Eun Na  1 , Tae Jun Kim  2 , Yeong Chan Lee  3 , Ji Eun Kim  4 , Eun Ran Kim  4 , Sung Noh Hong  4 , Dong Kyung Chang  4 , Young-Ho Kim  2
Affiliations

Risk of prostate cancer in patients with inflammatory bowel disease: a nationwide cohort study in South Korea

Ji Eun Na et al. Therap Adv Gastroenterol. .

Abstract

Background: Several studies have suggested an association between inflammatory bowel disease (IBD) and the risk of prostate cancer development. However, these findings are inconsistent, and studies based on Asian populations are limited.

Objectives: We compared the risk of prostate cancer according to IBD status using the Korean National Health Insurance Service database.

Design: A population-based retrospective cohort of age-matched 59,044 non-IBD patients and 14,761 IBD patients between January 2009 and December 2011 was analyzed up to December 2017.

Methods: The risk of prostate cancer was compared between patients with IBD and controls using the Cox proportional hazards regression model and Kaplan-Meier survival analysis.

Results: During a median follow-up of 6 years, the incidence rate of prostate cancer was 264 per 100,000 person-years in non-IBD patients and 242 per 100,000 person-years in patients with IBD. IBD status was not associated with the risk of prostate cancer compared to non-IBD [adjusted hazard ratio (aHR) 0.93, 95% confidence interval (CI): 0.80-1.08, p = 0.32). The cumulative incidence of prostate cancer did not differ by IBD status (non-IBD patients versus IBD patients: log-rank p = 0.27; non-IBD patients versus ulcerative colitis versus Crohn's disease: log-rank p = 0.42). In multivariate analysis, age was an independent risk factor for the development of prostate cancer (HR 1.03, 95% CI: 1.02-1.03, p < 0.001).

Conclusion: In our population-based study, IBD status was not associated with the risk of prostate cancer.

Keywords: inflammatory bowel disease; risk of prostatic cancer.

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Conflict of interest statement

The authors declare that there is no conflict of interest.

Figures

Figure 1.
Figure 1.
Selection of study population.
Figure 2.
Figure 2.
Kaplan-Meier analysis for cumulative incidence of prostatic cancer by inflammatory bowel disease (IBD) status.
See this image and copyright information in PMC

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