ArticleThe Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology2020
Better survival of right-sided than left-sided stage II colon cancer: a propensity scores matching analysis based on SEER database.
Article in The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Prognostic value of primary tumor location in colorectal cancer: an updated meta-analysis.Clinical and experimental medicine · 2023Pooled it
- Colorectal cancer sidedness: prognostic implications and the predictive role of artificial intelligence.BMC medical informatics and decision making · 2026Article
- B and T Tumor-Infiltrating Lymphocyte Subtypes According to Subsite: A Colon Cancer Immunophenotyping Map.Biomedicines · 2025Article
- Development and validation of cancer-specific survival prediction nomogram for patients with T4 stage colon cancer after surgical resection: a population-based study.International journal of colorectal disease · 2025Article
- The impact of sarcopenia on the outcome of patients with left-sided colon and rectal cancer after curative surgery.BMC cancer · 2023Article
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7 authors at 2 institutions in 1 country.
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Abstract
BACKGROUND/
aimsMost studies have found that right-sided colon cancer (RCC) has worse prognosis than left-sided colon cancer (LCC), especially in stage III, but the reported prognosis of stage II colon cancer is variable. This study aimed to evaluate the impact of tumor location on survival outcomes in stage II colon cancer. MATERIALS AND
methodsPatients with stage II colon cancer were identified in the Surveillance, Epidemiology, and End Results database from 2004 to 2009. The effect of tumor location on overall survival and cancer-specific survival was analyzed using Cox proportional hazards regression models and propensity score matching.
resultsOf 16,519 patients, 69.6% had RCC and30.4% had LCC. In unadjusted analyses, RCC had a 13% increased overall mortality risk (hazards ratio [HR], 1.13; 95% confidence interval [CI], 1.07-1.19; p<0.001) but an18% reduction in cancer-specific mortality risk compared with LCC (HR, 0.82; 95% CI, 0.76-0.89; p<0.001). After propensity scores matching analyses, RCC had a 21% reduced overall mortality risk (HR, 0.79; 95% CI, 0.72-0.87; p<0.001) and a 49% reduction in cancer-specific mortality risk compared with LCC (HR, 0.51; 95% CI, 0.44-0.60; p<0.001).
conclusionWhen adjusted for multiple clinicopathological features, stage II RCC showed better prognosis than stage II LCC.
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