主成分法在优先解决卫生问题次序中的应用研究

The Study on the Application of Principal Component Analysis in Selecting Priority of the Health Problems

目的:采用重庆市3组不同职务卫生管理者对卫生问题评价的调查信息,探讨主成分法在优先解决卫生问题次序中的应用。方法:以主要成分贡献率为权重,计算几个主要成分权重和作为排序指标。结果:3组评价人员对卫生问题优先解决次序认识各不相同,但卫生局局长组评价结果与3种职务综合组一致。结论:由于主成分消除了指标间相关关系对评价结果的影响,各主成分独立,故可对每个评价对象的各主成分值求和,作为综合评价值,从而得出比较客观的评价。

Objective:To adopt the data of three kinds of health officials evaluating health problems in Chongqing,and to explore the application of principal component analysis in selecting priority of the health problems.Methods:To take the proportion of eigenvalues of correlation matrix as weights to calculate the weighted sum of the main principal components to evaluate the health problems.Results:The different post officials have different viewpoints to the health problems.However,they are similar in the ideas between the public health bureau group and the composite group.Conclusions:Independent principal components eliminate the effects which are caused by the correlative variables in synthetic evaluation,so the are summed directly to provide basis for synthetic evaluation.