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Antecedents and Outcomes of Health Information Sharing: Role of EMR Sourcing

We examine the impact of electronic medical records (EMR) sourcing strategy and vendor selection, as well as participation in health information exchanges (HIE), on the extent of health information sharing. Drawing on seven years of data from a national sample of US hospitals, we find that hospitals which use enterprise and best-of-breed EMR solutions exhibit greater levels of information sharing, compared to hospitals which use self-developed EMR systems. We also observe that HIE participation and regional EMR similarity are positively associated with the level of information sharing. Further, we find that health information sharing improves hospital care outcomes in terms of emergency department efficiency, health expenditures, and quality of care. Our results highlight the role of EMR sourcing and selection in promoting information sharing across healthcare providers, and empirically delineate the underlying mechanisms through which the benefits of health IT on outcomes are realized. use self-developed EMR. We also find that active participation in an HIE is associated with greater levels of information sharing, and that hospitals which use the same EMR system as a majority of other hospitals in the same geographic region (i.e., greater EMR similarity) are more likely to share patient records. Further, our results indicate that