我国居民1995年主要疾病死亡率统计分析

Statistical Analysis Mortality of the Main Diseases of China's Residents in 1995

借助ＳＡＳ软件，运用析因设计的方差分析、曲线拟合等统计方法，对我国居民１９９５年主要疾病的死亡率资料进行分析。结果发现城乡之间、男女之间、１９个年龄段之间以及１５种主要疾病之间均有极显著性差异，但４个因素之间无交互作用；在城乡、男女的４种组合下，分别进行曲线拟合。

This article gives statistical analysis the data of mortality of fifteen main diseases of China's residents in 1995,using analysis of variance of factorial design and curve fitting of polynomial combined with SAS software package.It is found that there are very significant differences in Mortalities between urban residents and rural ones、males and females、nineteen age groups and fifteen main diseaes,but there are no significant combinations among city、countryside、male and female,the curve equations age are fitted respectively,The best models are all quintic polynomial.