中风病气虚血瘀证的计量诊断研究

Investigation on quantitative diagnosis of stroke with Qi deficiency and blood stasis

目的建立中风病气虚血瘀证的诊断模型。方法通过流行病学调查获取患者病情资料，将全部患者随机分为训练样本和验证样本，运用统计学方法建立诊断模型，然后分别用训练样本和验证样本对模型进行检验。结果建立了3个诊断模型，经检验Bayes气虚血瘀证判别函数准确性最好。结论通过流行病学调查而建立的中医证型诊断模型准确性好，有利于提高临床辨证准确率。

Objective To build diagnostic model of stroke with qi deficiency and blood stasis. Methods Get the disease information by epidemiological investigation. All patients were recurited into training samples and testing samples by random. Diagnostic model was built by statistical method, and tested by training samples and testing samples. Results Three diagnostic models were built. The best model with discriminant function of qi deficiency and blood stasis has been proven to be the Bayes model. Conclusion The diagnostic model built by epidemiological investigation has the advantage of good accuracy. It will improve the accuracy of clinical syndrome differentiation.