The prognostic index (PI) of patients was calculated on basis of the multivariate analysis. With the individual PI,patients were classified into different risk groups and the expected survival curves were obtained.
应用Cox多因素模型分析预后影响因素 ,建立预后指数 (prognosticindex ,PI)方程 ,根据预后指数将患者分为不同的危险组 ,计算不同危险组的期望生存曲线。
参考来源 - 子宫内膜腺鳞癌患者预后的多因素分析·2,447,543篇论文数据，部分数据来源于NoteExpress
研究人员评论说，这两个队列的总体生存曲线是可叠加的。
The overall survival curves of the 2 cohorts were superimposable, the researchers commented.
建立COX回归模型分析肿瘤转移复发高发期和生存曲线。
COX regression model was established to analyze the peaks of the metastasis and relapse, and the life curves of patients.
生存中值反映了生存曲线上的一个时间点，并不能测量总的生存期。
Median survival reflects one time point along the survival curve and does not measure the overall survival benefit.
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