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本文采用灰色系统ＧＭ（１，１）模型，对６０７例乳腺癌手术后生存率进行预测分析。经拟合和外推预测结果满意。拟合误差率０．３６～１．８２％，外推预测误差率０．３４～２．８２％。此模型适用于进行生存率预测分析。
This article uses the gray system GM (1,1) model to predict the survival rate of 607 cases of breast cancer after surgery. The fitting and extrapolation prediction results are satisfactory. The fitting error rate was 0.36 to 1.82%, and the extrapolated prediction error rate was 0.34 to 2.82%. This model is suitable for survival prediction analysis.