ArticleBMC cancer2011
The prognostic effect of ethnicity for gastric and esophageal cancer: the population-based experience in British Columbia, Canada.
Article in BMC cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Multi-disciplinary team for early gastric cancer diagnosis improves the detection rate of early gastric cancer.BMC gastroenterology · 2017Article
- Cancer and the healthy immigrant effect: a statistical analysis of cancer diagnosis using a linked Census-cancer registry administrative database.BMC public health · 2017Article
- Article
- The impact of gender, race, socioeconomic status, and treatment on outcomes in esophageal cancer: A population-based analysis.Journal of carcinogenesis · 2017Article
- Determination of Effective Factors on Survival of GI Cancers: Results of Five Years Follow up in Iranian Population.Global journal of health science · 2015Article
- Predicting the probability of mortality of gastric cancer patients using decision tree.Irish journal of medical science · 2015Article
- Significant Racial Disparities Exist in Noncardia Gastric Cancer Outcomes Among Kaiser Permanente's Patient Population.Digestive diseases and sciences · 2015Article
- Pretreatment metabolic tumour volume is predictive of disease-free survival and overall survival in patients with oesophageal squamous cell carcinoma.European journal of nuclear medicine and molecular imaging · 2014Article
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Authors and funding
6 authors.
Funding
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Abstract
backgroundGastric and esophageal cancers are among the most lethal human malignancies. Their epidemiology is geographically diverse. This study compares the survival of gastric and esophageal cancer patients among several ethnic groups including Chinese, South Asians, Iranians and Others in British Columbia (BC), Canada.
methodsData were obtained from the population-based BC Cancer Registry for patients diagnosed with invasive esophageal and gastric cancer between 1984 and 2006. The ethnicity of patients was estimated according to their names and categorized as Chinese, South Asian, Iranian or Other. Cox proportional hazards regression analysis was used to estimate the effect of ethnicity adjusted for patient sex and age, disease histology, tumor location, disease stage and treatment.
resultsThe survival of gastric cancer patients was significantly different among ethnic groups. Chinese patients showed better survival compared to others in univariate and multivariate analysis. The survival of esophageal cancer patients was significantly different among ethnic groups when the data was analyzed by a univariate test (p = 0.029), but not in the Cox multivariate model adjusted for other patient and prognostic factors.
conclusionsEthnicity may represent underlying genetic factors. Such factors could influence host-tumor interactions by altering the tumor's etiology and therefore its chance of spreading. Alternatively, genetic factors may determine response to treatments. Finally, ethnicity may represent non-genetic factors that affect survival. Differences in survival by ethnicity support the importance of ethnicity as a prognostic factor, and may provide clues for the future identification of genetic or lifestyle factors that underlie these observations.
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