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应用 COX回归模型对哮喘第四级 15 7例 15项影响预后因素与病情控制期进行了分析。结果显示 ,经多因素分析得预后指数预测方法为 PI=-0 .5 30 4+ 0 .75 73X5 + 0 .2 2 93X7+ 0 .4379X9-1.3482 X1 5 ,预测预后与实际预后经χ2 检验结果完全一致 (P>0 .10 ) ,方程平均判断准确率为 91% ,模型的敏感度达 95 .5 1%。
The COX regression model was used to analyze 15 prognostic factors and 15 stages of asthma control in the fourth stage of asthma. The results showed that prognostic index by multivariate analysis of PI = -0.5304 +0.775 73X5 +0.22 93X7 +0.4379X9-1.3482X1 5, predict the prognosis and the actual prognosis by χ2 test results completely (P> 0.10). The average accuracy of the equation was 91% and the sensitivity of the model was 95.51%.