Back to Annual Meeting Page		American Public Health Association 133rd Annual Meeting & Exposition December 10-14, 2005 Philadelphia, PA

Abstract #114723

Chantal M. Montagnet, MA, MPhil¹, Mary Putt, PhD, ScD¹, Yu-Ning Wong, MD², and Katrina Armstrong, MD³. (1) School of Medicine, University of Pennsylvania, 423 Guardian Drive, 1129 Blockley Hall, Philadelphia, PA 19104-6021, 215.898.0162, cmontagn@mail.med.upenn.edu, (2) Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111, (3) Internal Medicine, University of Pennsylvania, 1233 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104

Prostate cancer is the 2nd most common cancer in men, with over 230,000 new cases in 2004. Since the advent of PSA testing, over 90% of cases are localized at diagnosis. Racial disparities in prostate cancer exist across several dimensions: age and stage at diagnosis, treatment, and outcomes. In this study, we investigated the relationship between racial residential segregation and racial differences in radical prostatectomy (RP) rates among men with localized prostate cancer. We analyzed 1992-2001 data from Surveillance Epidemiology and End Results (SEER), the national cancer registry that includes ~11% of the US population. Treatment was determined based upon chart abstraction by SEER and categorized as RP vs. other. The level of segregation (index of dissimilarity) was determined by linking to the 2000 Census at the county level. Analyses were adjusted for age and martial status, stage and grade at presentation, SEER site and year of diagnosis. The results demonstrate that black men are significantly less likely to undergo radical prostatectomy than are white men, though this finding differed depending on segregation level (low segregation OR 0.93; high segregation OR 0.78; p=0.004). We will replicate this analysis with SEER-Medicare (S-M) linked data and incorporate individual-level census tract information. County segregation measure and an indicator of hypersegregation will be considered in relation to prostatectomy rates and rate ratios for Blacks and Whites. We will control for proportion Black and proportion living in poverty in each census tract.

Learning Objectives: After viewing this poster, the audience will be able to

• Discuss the racial differences in prostate cancer in the US
• Define the dissimilarity index and hypersegregation and list counties in the SEER program that are hypersegregated
• Explain the difference between a rate and rate ratio

Keywords: Cancer, Male Health

Presenting author's disclosure statement:

I wish to disclose that I have NO financial interests or other relationship with the manufactures of commercial products, suppliers of commercial services or commercial supporters.