| Summary: | Shubin Song, Chunfeng Li, Sen Li, Xiliang Cong, Yingwei Xue Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin, China Background and objectives: Patients of different ages with gastric cancer (GC) have different clinicopathological features and prognoses. The results for different crowds are limited and controversial. The aim of this study was to investigate the differences in clinicopathological features and prognoses between younger and older GC patients.Methods: From January 2007 to December 2011, a consecutive total of 112 GC patients under 41 years old and 358 GC patients over 69 years old who underwent gastrectomy for GC were recruited for this study. Then, the clinicopathological features and prognoses of these patients were analyzed comparatively. Results: The gender, differentiation, carbohydrate antigen (CA) 19–9 and carcinoembryonic antigen (CEA) were significantly different between younger and older GC patients. There were more female and undifferentiated younger GC patients, and there were higher percentages of positive CA19–9 and CEA in older GC patients. The number of metastatic lymph nodes was an independent risk parameter for prognosis in younger patients, and the AJCC TNM (Tumor-Nodes-Metastases classification by American Joint Committee on Cancer) stage, radicality and tumor size were independent risk parameters for prognosis in older GC patients. Younger GC patients have a much better prognoses with lower monocyte-to-lymphocyte ratio and higher prognostic nutritional index than older patients. Conclusions: Younger GC patients have better immunity and nutritional status and better prognoses. The number of metastatic lymph nodes was the only risk parameter for prognosis in younger GC patients. We should take more effective treatments for younger GC patients with lymph nodes metastasis and pay more attention to the nutritional problems of older GC patients. Keywords: gastric cancer, clinicopathological feature, age, prognosis
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