Empirical evaluation of statistical models for counts or rates.

Empirical evaluation of statistical models for counts or rates.
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计数或比率统计模型的实证评估。

DOI:
10.1002/sim.4780100908
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发表时间:
1991
影响因子:
2
通讯作者:
McMahonJr,LF
McMahonJr,LF
中科院分区:
医学3区
文献类型:
--
作者:
Wolfe,RA;Petroni,GR;McLaughlin,CG;McMahonJr,LF

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我们考虑的方法,选择联合规格的均值和方差函数的统计模型率或计数。基于对密歇根州特定诊断医院出院率的分析,我们表明,在误差结构的规范方面,具有系统变异的额外方差分量的泊松模型上级其他几种概率模型。此外,偏差残差似乎上级于皮尔逊残差。这种变化的适当规范对于许多类型的分析至关重要,例如识别离群值和回归分析,旨在解释变异的系统成分。
We consider methods for selecting the joint specification of the mean and variance functions in statistical models for rates or counts. Based on analyses of diagnosis‐specific hospital discharge rates in Michigan, we show that a Poisson model with an extra variance component for the systematic variation is superior to several other probability models with regard to specification of the error structure. Further, the deviance residual appears superior to the Pearson residual. The proper specification of such variation is crucial for many types of analyses, such as identification of outliers and regression analyses designed to explain the systematic component of the variation.
DOI: --
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