A method of social area analysis developed by Shevky and Bell is used to analyze mortality among the census tracts of Des Moines, Iowa. "Social rank, urbanization, and segregation indices as well as age-standardized death rates were calculated for each census tract. All variables were treated as continuous, and correlation and regression procedures were used to analyze the data. The findings were consistent with those of previous studies and all relationships were as expected. Regression analysis revealed that segregation contributed little to the explanation of variation in age-standardized death rates, suggesting that segregation is not an important determinant of life styles affecting mortality independent of social rank. The results were interpreted in terms of social class differences in accessibility to medical assistance and assumption of the sick role."

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城市死亡率的相关性：社会区域分析

Shevky 和 ​​Bell 开发的一种社会区域分析方法用于分析爱荷华州得梅因人口普查区的死亡率。“计算每个人口普查区的社会等级、城市化和隔离指数以及年龄标准化死亡率。所有变量都被视为连续变量，并使用相关和回归程序来分析数据。结果与之前的研究和所有关系都符合预期。回归分析显示，隔离对解释年龄标准化死亡率的变化几乎没有贡献，这表明隔离不是影响独立于社会等级的死亡率的生活方式的重要决定因素。