Wolinsky F D, Stump T E, Johnson R J
Department of Medicine, Indiana University School of Medicine, USA.
J Gerontol B Psychol Sci Soc Sci. 1995 Mar;50(2):S88-100. doi: 10.1093/geronb/50b.2.s88.
Medicare claims data are used to model hospital utilization patterns for the 4,660 survivors and 2,867 decedents of the Longitudinal Study on Aging (LSOA). When the volume of hospital utilization was collapsed into four categories based on the mean annual number of hospital episodes and consistency was defined as a maximum absolute deviation from that mean of 1.5 or less, 42.6 percent of the LSOA respondents were found not to have any hospital admissions, and another 24.7 percent were found to be consistently low users. Only 4.8 percent were consistently high users, with an additional 6.8 percent being inconsistently high users. Multiple regression identified prior physician and hospital utilization, as well as poor perceived health, as the most important predictors of the volume and consistency of hospital utilization among survivors, as well as of the volume of hospital utilization among decedents. Among decedents, consistency was primarily related to geographic region and prior physician utilization.
医疗保险索赔数据被用于为老龄化纵向研究（LSOA）中的4660名幸存者和2867名死者建立医院使用模式模型。当根据年均住院次数将医院使用量分为四类，且一致性被定义为与该均值的最大绝对偏差为1.5或更低时，发现LSOA的受访者中有42.6%没有任何住院记录，另有24.7%被发现是持续低使用量者。只有4.8%是持续高使用量者，还有6.8%是使用量不稳定的高使用量者。多元回归分析确定，既往医生和医院使用情况以及自我感觉健康状况不佳是幸存者中住院使用量和一致性以及死者住院使用量的最重要预测因素。在死者中，一致性主要与地理区域和既往医生使用情况有关。
