Localized prostate cancer disparities in risk group at presentation and access to treatment for Hispanic men

Background Despite great heterogeneity amongst Hispanic groups, prostate cancer studies often report Hispanic patients in aggregate. We sought to identify differences in prostate cancer risk group at presentation and treatment status among Hispanic subgroup populations. Methods Patients with localized prostate adenocarcinoma diagnosed from 2004-2017 were identified in the National Cancer Database (NCDB) and disaggregated by racial subgroup and Hispanic country of origin. Ordinal logistic regression defined adjusted odds ratios (AORs) with 95% CI of (1) presenting at progressively higher risk group and (2) receiving treatment with intermediate-unfavorable or high-risk disease. Results In our sample (n = 895,087), Hispanic men had greater odds of presenting with higher-risk localized prostate cancer compared with non-Hispanic White men (AOR = 1.18 95% CI 1.16-1.21, p < 0.001). Additionally, Hispanic Black men were less likely to present with higher-risk disease than non-Hispanic Black men. Disparities also existed when disaggregated by country of origin, particularly for Mexican men. Amongst men with unfavorable-risk disease, Hispanic men were less likely to receive treatment than non-Hispanic White men (95% CI 0.57-0.67, p < 0.001). The odds of Hispanic Black patients receiving treatment was 2.00 times the odds (95% CI 1.17-3.41 p = 0.011) of non-Hispanic Black patients receiving treatment. Upon disaggregation by country of origin, disparities persisted, particularly for Mexican men. Conclusion We found marked heterogeneity when risk group at presentation and treatment for higher-risk disease were disaggregated by racial subgroup and country of origin. Our findings support further collection of disaggregated data in Hispanic communities and study of potential mechanisms underlying the observed differences.