PMIの基準年令に関する知見補遺主成分分析による解析

概要

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PMI (Proportional Mortality Indicator) is the percentage of deaths at a certain age and over to total deaths, and this age is usually fixed to that of 50 years old. Through the procedure of principal component analysis, the authors investigated the age for PMI in regions with various scales of population.Results obtained were as follows:1) Judging from the eigen values in the primary and secondary principal component, linear regressions were considerable clear.2) The age of 40 or 45 years was most adequate for the age mentioned above.3) The values of linear combination in the primary principal component of PMI calculated by dividing lines for every 5th year were valid for the evaluation of health in the middle or large regions but not in the small regions in comparison to another health indicators.
日本衛生学会の論文