The authors analyzed the minimum data set quality indicators data aggregated nationally from 134 Department of Veterans Affairs nursing home care units with more than 15 000 long-stay residents (> 90 days) yearly for federal fiscal years 2003, 2004, and 2005. Despite an increase in the severity of illness and complexity of services as determined by the minimum data set case-mix indices, most of the minimum data set quality indicators showed an improvement (rate decrease) from fiscal year 2003 to fiscal year 2005, whether examined on a year-to-year basis or by an overall 3-year trend. Nationally, there was a 5.1% increase in average case-mix index, while 14 of 24 quality indicators showed a decrease in the prevalence/ incidence rates and only 4 quality indicators showed increased rates. These minimum data set results provide important information for Veterans Affairs quality managers regarding areas of achievement and also identify areas to be targeted for future quality improvement. (Am J Med Qual 2007;22:344-350)
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