Reviewing the Demographic, Prognostic, and Treatment Factors of Primary Adenocarcinoma of the Bladder: A SEER Population-based Study

Clinical Genitourinary Cancer
Caleb NataleL Spencer Krane

Abstract

The objective of this study was to characterize the demographic, prognostic, and treatment factors for patients with primary adenocarcinoma of the bladder by analyzing the impact of histologic subtype in a large sample size and interpreting newly released Surveillance, Epidemiology, and End Results (SEER) chemotherapy data. The SEER 18 Registry was utilized to identify cases of primary adenocarcinoma diagnosed from 1973 to 2015. Demographic data, tumor and disease characteristics, treatment information, and survival outcome data were collected. Overall survival and disease-specific survival were determined using Kaplan-Meier curve analysis. Univariate and multivariate Cox regression analysis were then completed using SAS JMP. A total of 2305 cases of primary adenocarcinoma of the bladder were identified. Overall survival at 2-, 5- and 10-year intervals was 54.8%, 36.1%, and 25.4%, respectively. Disease-specific survival at 2-, 5- and 10-year intervals was 62.0%, 47.1%, and 40.1%, respectively. Patients were treated with surgery (86.4%), chemotherapy (21.9%), and radiation (15.0%) (P < .0001). Multivariate Cox regression analysis showed independent prognostic value for gender, stage, grade, primary tumor location, and histologic...Continue Reading

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