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目的：探讨影响原发性小肠恶性肿瘤预后的重要因素。方法：选取各种可能影响预后的因素，包括性别、年龄、病程、组织学类型、肿瘤部位、肿瘤最大径、大体类型、淋巴结转移、肝转移、邻近器官侵犯、手术方式及化疗１２个因素，进行ＣＯＸ模型多因素分析，生存率计算用寿命表法。结果：选入模型的因素有年龄、组织学类型、肿瘤部位、手术方式。本组术后１、３、５年生存率分别为７０．７％、４９．９％和３５．１％，其中根治性切除术后１、３、５年生存率分别为８７．５％、６８．７％和４８．１％。结论：影响原发性小肠恶性肿瘤预后的因素有年龄、组织学类型、肿瘤部位和手术方式，化学治疗价值不大。
Objective: To explore the important factors affecting the prognosis of primary malignant tumors of the small intestine. METHODS: Various factors that may affect prognosis were selected, including gender, age, duration, histological type, tumor site, tumor maximal diameter, gross type, lymph node metastasis, hepatic metastasis, invasion of adjacent organs, surgical methods, and chemotherapy. A multivariate analysis of the COX model was performed, and the survival rate was calculated using the life table method. Results: The factors selected for the model included age, histological type, tumor location, and surgical approach. The 1-, 3-, and 5-year survival rates of this group were 70.7%, 49.9%, and 35.1%, respectively, and the 1-, 3-, and 5-year survival rates after radical resection were 87.5%. 68.7% and 48.1%. Conclusion: The factors affecting the prognosis of primary malignant tumors of the small intestine include age, histological type, tumor location, and surgical method. The value of chemotherapy is not significant.