Background: There are limited data examining the risk of prostate cancer (PCa) in patients with inflammatory bowel disease (IBD).Objective: To compare the incidence of PCa between men with and those without IBD.Design, setting, and participants: This was a retrospective, matched-cohort study involving a single academic medical center and conducted from 1996 to 2017. Male patients with IBD (cases = 1033) were randomly matched 1:9 by age and race to men without IBD (controls = 9306). All patients had undergone at least one prostate-specific antigen (PSA) screening test.Outcome measurements and statistical analysis: Kaplan-Meier and multivariable Cox proportional hazard models, stratified by age and race, evaluated the relationship between IBD and

BACKGROUND: More than 3.6 million men in the United States harbor a diagnosis of prostate cancer (PCa). The authors sought to provide in-depth analyses of the causes of death for contemporary survivors. METHODS: The authors performed a population-based cohort study in the United States (2000States ( -2016 to assess causes of death for men diagnosed with PCa stratified by demographics and tumor stage. Using general population data, they calculated standardized mortality ratios (SMRs) as observed-to-expected death ratios. RESULTS: In total, 752,092 men with PCa, including 200,302 who died (27%), were assessed. A total of 29,048 men with local/regional disease (17%) died of PCa, whereas more than 4-fold men died of other causes (n = 143,719 [83%]). SMRs for death from noncancer causes (0.77; 95% confidence interval [CI], 0.77-0.78) suggested that these men were less likely than the general population to die of most other causes. The most common noncancer cause of death was cardiac-related (23%; SMR, 0.76; 95% CI, 0.75-0.77). Among men with distant PCa, 90% of deaths occurred within 5 years of diagnosis. Although deaths due to PCa composed the majority of deaths (74%), SMRs suggested that men with distant PCa were at heightened risk for death from most other noncancer causes (1.50; 95% CI, 1.46-1.54) and, in particular, for cardiac-related death (SMR, 1.48; 95% CI, 1.41-1.54) and suicide (SMR, 2.32; 95% CI, 1.78-2.96). Further analyses demonstrated that causes of death varied by patient demographics. CONCLUSIONS: Causes of death during PCa survivorship vary by patient and tumor characteristics. These data provide valuable information regarding health care prioritization during PCa survivorship.

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