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. 2017 Jul;28(7):767-777.
doi: 10.1007/s10552-017-0896-9. Epub 2017 Apr 27.

Racial differences in prostate cancer risk in young HIV-positive and HIV-negative men: a prospective cohort study

Anupriya Dutta  1 , Hajime Uno  2 , Alex Holman  1 , David R Lorenz  1 , Dana Gabuzda  3
Affiliations

Racial differences in prostate cancer risk in young HIV-positive and HIV-negative men: a prospective cohort study

Anupriya Dutta et al. Cancer Causes Control. 2017 Jul.

Abstract

Purpose: African American men have the highest incidence of prostate cancer among ethnic groups, and racial disparity is highest in younger men. Prostate cancer prevalence is rising in HIV-infected men due to improved survival on antiretroviral therapies, yet little is known about racial differences in prostate cancer risk by HIV-infection status and age.

Methods: This is a prospective cohort study of prostate cancer risk in 2,800 HIV-infected and -uninfected men who have sex with men (MSM) aged 40-70 years (22% African American) who were enrolled in the multicenter AIDS cohort study from 1996 to 2010. Poisson regression models were used to examine associations between race and HIV-infection status and prostate cancer risk among men aged 40-70, 40-55, and 56-70 years.

Results: Among men aged 40-70 years, incidence rates (IR) per 100,000 person-years were 169 among all men and 276 among African American HIV-infected men. Prostate cancer risk was similar by HIV-infection status (IRR 1.0, 95% CI 0.55-1.82), but nearly threefold higher in African Americans compared to non-African Americans in adjusted models (IRRs 2.66 and 3.22, 95% CIs 1.36-5.18 and 1.27-8.16 for all or HIV-infected men, respectively). Racial disparity in prostate cancer risk was greatest in African American men aged 40-55 years (adjusted IRR 3.31, 95% CI 1.19-9.22). Prostate cancer risk showed associations with family history of prostate cancer (p = 0.001), but not heavy smoking, androgen supplement use, or HIV-related factors.

Conclusions: Among MSM, African American HIV-positive and HIV-negative men aged 40-55 years have threefold increased risk of young-onset prostate cancer compared to non-African American men, highlighting the need to make informed decisions about screening in this population.

Keywords: Cancer epidemiology; Cancer racial disparity; Cancer risk; HIV-1; Prostate cancer.

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Conflict of interest statement

Conflicts of interest: The authors report no conflicts of interest

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