Differential impact of prostate-specific antigen screening pattern on prostate cancermortality among non-Hispanic black and non-Hispanic white men: A large, urban health system cohort analysis

Document Type

Conference Proceeding

Publication Date

3-1-2024

Publication Title

Eur Urol

Abstract

Introduction & Objectives: Randomized studies assessing the effect of prostate-specific antigen (PSA) screening on mortality in Non- Hispanic Black men (NHB) are lacking. The aim of our study was to assess the association between PSA screening and survival among NHB men in comparison to Non-Hispanic White (NHW) men in a racially diverse real-world North American population. Materials & Methods: The study cohort included 6,378 men who self-identified as NHB or NHW and were diagnosed with prostate cancer (PCa). They received PSA screening and subsequent PCa treatment and follow-up at our institution between the years 2000 and 2019. Patients were sorted based on PSA testing intensity for the 5 years prior to diagnosis, as follows: never, some (<1 test/year), and annual testing (1 test/year). The primary outcome was risk of prostate cancer-specific mortality (PCSM) among NHB and NHW. Competing-risk cumulative incidence curves estimated PCSM rates. Fine-Gray regression analyses examined the impact of PSA testing on PCSM. Results: Median (IQR) age and PSA at diagnosis were 67 (60 - 73) years and 5.8 (4.4 - 9.6) ng/ml, respectively and 2,929 (45.9%) men were NHB. Annual PSA testing was more frequent in NHW (5.2%) than in NHB (3.2%) men (p<0.001). On cumulative incidence analysis, in the never, some, and annual PSA testing groups, the 10-year PCSM was respectively 12.3%, 5.8%, and 4.6% in NHW and 18.5%, 7.0%, 1.2% in NHB patients (both p<0.001). On multivariable analysis, a more intensive PSA testing strategy was associated with more favorable PCSM rates for NHB (HR: 0.38; 95% CI 0.22-0.64; p < 0.001) as well as NHW men (HR: 0.56; 95% CI 0.34-0.93; p=0.025). Conclusions: In this retrospective cohort study, annual PSA testing was associated with a reduced risk of PCSM in both NHB and NHW men who were diagnosed with PCa. NHB men seemed to benefit from frequent PSA testing compared to their NHW counterparts. [Figure presented]

Volume

85

First Page

S404

Last Page

S405

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