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Updated: May 18, 2026
12:24
A Three-Dimensional Spheroid Model to Investigate the Tumor-Stromal Interaction in Hepatocellular Carcinoma
Published on: September 30, 2021
Smoking and hepatocellular carcinoma mortality
Abby B Siegel1, Kristina Conner, Shuang Wang
1Department of Medicine;
Experimental and Therapeutic Medicine
|September 13, 2012
Summary
Cigarette smoking is not independently linked to mortality in hepatocellular carcinoma (HCC) patients. Favorable prognostic factors in smokers may mask smoking's direct impact on HCC survival.
Area of Science:
- Hepatobiliary Medicine
- Oncology
- Epidemiology
Background:
- The relationship between cigarette smoking and hepatocellular carcinoma (HCC) mortality remains unclear.
- Previous studies show conflicting results regarding smoking's impact on HCC patient outcomes.
Purpose of the Study:
- To investigate the association between smoking history and mortality in patients diagnosed with HCC.
- To identify if smoking status, pack-year history, or cessation time influences survival in HCC patients.
Main Methods:
- Retrospective analysis of 444 HCC patients diagnosed between 2002 and 2009.
- Cox proportional hazards models were used to assess predictors of mortality, including smoking history.
- Analysis included demographic, clinical, and treatment factors, as well as pack-year history and cessation timing.
Main Results:
- Of 444 patients, 223 were smokers. Smokers were younger at diagnosis and more likely to have undergone surgery.
- Smoking was not an independent predictor of mortality in the multivariable Cox model.
- Neither pack-year history nor cessation time significantly affected survival after adjusting for age; however, a significant interaction between smoking and drinking was observed.
Conclusions:
- In this cohort, cigarette smoking was not independently associated with HCC mortality.
- Favorable prognostic features observed in smokers likely offset any potential negative impact of smoking on survival.
- Further research is needed to elucidate the complex interplay between smoking, drinking, and HCC outcomes.
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