It seems counterintuitive and contrary to the overwhelming majority of articles and studies, but the New York Times today reported on a study recently appearing in Health Affairs that suggested that the switch to electronic medical records resulted in a 40 percent increase in tests, most of the MRI and CAT scan variety. The study, based upon the analysis of a 2008 survey by the National Center for Health Statistics, performed for an entirely different purpose, and has questionable design. The study followed 28,888 patient visits and 1100 physicians and claims to have a more National perspective. The authors of the study suggest that most earlier studies are based upon statistical models of expected savings like those undertaken by the RAND Corporation and the study of flagship integrated systems like Kaiser, rather than on national utilization data.
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