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癌症患者生存分析
生存分析是肿瘤临床研究中评估患者预后、识别风险因素的核心方法。本研究基于一份癌症患者随访数据,通过描述性统计、Kaplan‑Meier生存曲线、Cox比例风险回归模型以及时间依赖性ROC曲线,系统分析患者生存时间与临床特征(年龄、性别、癌症类型、体重)之间的关系,旨在筛选影响生存的独立预后因素,并评估模型的预测能力。
6 months ago