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Risk of Pathological Upgrading and Up Staging among Men with Low Risk Prostate Cancer Varies by Race: Results from the National Cancer Database.

ABSTRACT: PURPOSE:The impact of African-American race on oncologic outcomes for low risk prostate cancer is unclear due to conflicting data. We investigated the effect of African-American race on pathological upgrading and/or up staging at prostatectomy in men with clinically low risk prostate cancer. MATERIALS AND METHODS:We queried the National Cancer Database for men with low risk prostate cancer (clinical stage T2a or less, Gleason score 6 or less, prostate specific antigen less than 10 ng/ml) treated with radical prostatectomy between 2010 and 2013. The outcomes were pathological upgrading to Gleason score greater than 6 (primary) or Gleason score greater than 3+4=7 (secondary) and/or up staging (pathological T3-4 or N1 disease). The association between race and the end points was assessed using multivariable logistic regression. To further adjust for potential confounders, stratification by urban residence and comorbidity score, and subgroup analyses were performed. RESULTS:With adjustment for age, comorbidity, income, urban residence, T stage, prostate specific antigen and percentage of positive biopsy cores, African-American race conferred 1.2-fold higher odds of pathological upgrading to Gleason score greater than 6 and/or up staging (OR 1.2, 95% CI 1.1-1.3, p <0.01). African-American race also was an independent predictor of pathological upgrading to Gleason score greater than 3+4=7 and/or up staging (p=0.03). CONCLUSIONS:African-American men with low risk prostate cancer are more likely to harbor higher risk disease, which may lead to adverse outcomes. This finding alone does not preclude active surveillance. However, race should be considered as men weigh the risks and benefits of active surveillance vs treatment.

SUBMITTER: Maurice MJ

PROVIDER: S-EPMC6513017 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Risk of Pathological Upgrading and Up Staging among Men with Low Risk Prostate Cancer Varies by Race: Results from the National Cancer Database.

Maurice Matthew J MJ Sundi Debasish D Schaeffer Edward M EM Abouassaly Robert R

The Journal of urology 20160828 3 Pt 1

<h4>Purpose</h4>The impact of African-American race on oncologic outcomes for low risk prostate cancer is unclear due to conflicting data. We investigated the effect of African-American race on pathological upgrading and/or up staging at prostatectomy in men with clinically low risk prostate cancer.<h4>Materials and methods</h4>We queried the National Cancer Database for men with low risk prostate cancer (clinical stage T2a or less, Gleason score 6 or less, prostate specific antigen less than 10 ...[more]

PMID: 27582435

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Project description:PurposeTo test the hypothesis that bladder preservation therapy consisting of definitive chemoradiotherapy (chemoRT) results in similar overall survival rates to radical cystectomy/chemotherapy when balancing baseline patient characteristics and initial (preoperative) clinical stage.Materials/methodsA total of 7,322 patients with stage II-IV, M0 bladder cancer who were treated with cystectomy/chemo (N = 5,664) or definitive chemoRT (N = 1,658) were identified from the National Cancer Database. Baseline patient characteristics were compared using Pearson's chi-square, Fisher's exact test, and Wilcoxon's rank sum tests. Cox regressions were used to investigate for variables significantly correlated with overall survival (OS). OS was compared between cystectomy/chemo vs chemoRT before and after propensity score matched pair analyses using Kaplan-Meier curves and log-rank tests.ResultsPatients who underwent cystectomy/chemo were significantly younger than ones treated with definitive chemoRT (mean age 63.7 vs 75.2; P < 0.001). Age, race, Charlson/Deyo Comorbidity Score (CDCS), clinical stage, insurance status, and type of facility significantly correlated with OS (P < 0.05 for all covariates). Patients treated with cystectomy/chemo were younger, healthier with better CDCS, and more likely treated at academic facilities. Before matched pair analyses, OS was significantly better when treated with cystectomy/chemo (3 year 56.4%; 5 year 45.9%) compared to chemoRT (3 year 47.3%; 5 year 33.2%) (P < 0.001); 28.6% of patients undergoing cystectomy were upstaged at the time of surgery. After matched pair analyses matching age, race, sex, CDCS, clinical (presurgical) stage, insurance, and facility type (N = 1,750), OS was no longer significantly different between cystectomy/chemo (3 year 52.1% and 5 year 41.0%) vs chemoRT (3 year 53.3% and 5 year 40.1%) (P = 0.5).ConclusionsPatients treated with cystectomy/chemo were significantly younger and healthier compared to those treated with chemoRT. Once these factors were accounted for in propensity score matched pair analyses using clinical stage, overall survival was not significantly different between cystectomy/chemo and an organ-sparing approach with definitive chemoRT.

Dataset Information

Risk of Pathological Upgrading and Up Staging among Men with Low Risk Prostate Cancer Varies by Race: Results from the National Cancer Database.

Publications

Risk of Pathological Upgrading and Up Staging among Men with Low Risk Prostate Cancer Varies by Race: Results from the National Cancer Database.

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