北京市老年人高血压病的判别分析

A Discriminatory Analysis of Essencial Hypertension for the Elderly in Beijing

根据通过分层整群抽样获得的流行病学调查资料,采用非配对的病例对照的研究方法,对160例60岁以上老年人(高血压患者51例,临界高血压31例,正常血压78例)22项指标,进行在贝叶氏准则下的判别分析,总的回代符合率为62.8‰,假阴性为21.57％,假阳性为34.61％。X^2检验差异有极显著意义,但是对判别函数总的效果检验,差异无显著性(P?0.05),提示各类间的距离很近。

A case-control study of essential hypertension for the elderly was carried out in Beijing in1988. 57 cases with essential hypertension and 31 cases with critical hypertension were matched78 controls. Bayes discriminatory analysis was used to distinguish between diseased and normalstates in individual. 22 data variables in the subjects were collected. The correct rate is 61.25%in classification of results. False positive rate is 34.61%. False negative rate is 21.57%. Statitis-ticD^2=4. 33232(P>0.05). This indicated the variabls being studied have weak association withdiseases. However. further research need was emphasized.