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Variation of Hepatocellular Carcinoma Treatment Patterns and Survival Across Geographic Regions in a Veteran Population

  • Hepatobiliary Tumors
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Background

Veteran populations have five times the incidence of hepatocellular carcinoma (HCC) compared with the general population. The incidence of HCC has increased in the Veteran’s Affairs Health System (VAHS), primarily due to the increased prevalence of cirrhosis. This study aimed to characterize differences in treatment patterns and overall survival rates across the five VAHS geographic regions.

Methods

Using the VA Corporate Data Warehouse, the authors built a comprehensive national dataset of Veteran patients with HCC diagnosed between 2001 and 2015 to compare patients across VAHS regions. A multivariable Cox proportional hazards model was used to identify factors associated with 5-year all-cause mortality. Kaplan-Meier curves were used to visualize the patient survival function, and the log-rank test was applied to test statistical significance.

Results

This retrospective study analyzed 13,434 patients. The West region had the highest rate of overall treatment receipt (63.6%), and the Southwest had the lowest rate (52.9%). After adjustment for demographic, clinicopathologic, treatment, and hospital factors, treatment in a non-West region continued to be significantly associated with a 10% to 13% increased risk of 5-year mortality (Midwest: hazard ratio [HR], 1.11; 95% confidence interval [CI], 1.03–1.17; Northeast: HR, 1.10; 95% CI, 1.03–1.17; Southeast: HR, 1.13; 95% CI, 1.06–1.21; Southwest: HR, 1.11; 95% CI, 1.03–1.19) (p < 0.01).

Conclusions

Treatment patterns and overall survival rates of HCC patients differ significantly across VAHS geographic regions. Targeted interventions to increase the rate of treatment in the non-West regions are needed to improve survival of HCC Veterans and provide uniformly high-quality care across VAHS facilities.

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Acknowledgment

John D. Karalis was supported by a Physician-Scientist Institutional Award from the Burroughs Wellcome Fund (award no. 1018897). Work by Patricio M. Polanco was supported by the New Investigator Award Program of the North Texas VA Health Care System and the Eugene P. Frenkel, M.D. Scholar in Clinical Medicine Program of UT Southwestern.

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Correspondence to Patricio M. Polanco MD.

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Ju, M.R., Karalis, J.D., Chansard, M. et al. Variation of Hepatocellular Carcinoma Treatment Patterns and Survival Across Geographic Regions in a Veteran Population. Ann Surg Oncol 29, 8413–8420 (2022). https://doi.org/10.1245/s10434-022-12390-7

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  • DOI: https://doi.org/10.1245/s10434-022-12390-7