Abstract
Background
Most patients with hepatocellular carcinoma (HCC) are ≥ 65 years old at diagnosis and ~ 20% present with disease amenable to curative intent surgical therapy. The aim of this study was to examine whether treatment, the demographic variables, and clinical factors could predict 5-year survival among HCC patients.
Methods
We included patients, 66 years or older, diagnosed with a first primary HCC from 1994 through 2007 in the SEER-Medicare database, and followed up until death or 31 December 2012. Curative intent treatment was defined as liver transplantation, surgery resection, or ablation. We estimated odds ratios (OR) and 95% confidence intervals (CI) for associations with 5-year survival using logistic regression.
Results
We identified 10,826 patients with HCC with mean age 75.3 (standard deviation, 6.4) years. Most were male (62.2%) and non-Hispanic white (59.7%). Overall, only 8.1% of patients were alive 5 years post-HCC diagnosis date. Among all patients that survived ≥ 5 years, 69.8% received potentially curative treatment. Conversely, patients who received potentially curative treatment represented only 15.7% of patients who survived < 5 years. Curative intent treatment was the strongest predictor for surviving ≥ 5 years (vs. none/palliative treatment; adjusted OR 8.12, 95% CI 6.90–9.64). While stage at diagnosis and comorbidities were also independently associated with ≥ 5-year survival in HCC patients, these factors did not improve discrimination between short- and long-term survivors.
Conclusions
Curative intent treatment was the strongest predictor for survival ≥ 5 years among HCC patients. Given the limited availability of liver transplant and limited eligibility for surgical resection, finding curative intent HCC therapies remain critically important.


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Funding
X. Zhang was supported by a research training grant from the Cancer Prevention and Research Institute of Texas (CPRIT; RP160097). H.B. El-Serag was supported by NIDDK K24-04-107.
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XZ, HBE, APT: Conception and design, Development of methodology, Analysis and interpretation of data (e.g., statistical analysis, biostatistics, computational analysis), Writing, review, and/or revision of the manuscript. APT: Acquisition of data (provided animals, acquired and managed patients, provided facilities, etc.), Study supervision. XZ, HBE: Administrative, technical, or material support (i.e., reporting or organizing data, constructing databases). All authors approved the final version of the manuscript.
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Zhang, X., El-Serag, H.B. & Thrift, A.P. Predictors of five-year survival among patients with hepatocellular carcinoma in the United States: an analysis of SEER-Medicare. Cancer Causes Control 32, 317–325 (2021). https://doi.org/10.1007/s10552-020-01386-x
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DOI: https://doi.org/10.1007/s10552-020-01386-x