A method for understanding some consequences of bringing patient-generated data into health care delivery

Medical Decision Making : an International Journal of the Society for Medical Decision Making
Duane A StewardDavid E Milov

Abstract

The consequences of personal health record (PHR) phenomena on the health care system are poorly understood. This research measures one aspect of the phenomena--the time-cost impact of patient-generated data (PGD) using discrete event model (DEM) simulation. Little has been written about the temporal and cognitive burden associated with new workflows that include PGD. This pilot study reports the results for time-cost and resource utilization of a ''typical'' ambulatory clinic under varying conditions of PGD burden. PGD effects are modeled with DEM simulation reflecting the sequential relationships, temporal coupling, and impact assumptions within a virtual clinic. Three simulation scenarios of ever-increasing PGD impact are compared to a baseline case of no PGD use. Introduction of PGD resulted in expected increases in cost and resource utilization along with a few key exceptions and unanticipated consequences. Direct and indirect impacts were observed with notable nonlinear, nonadditive, disproportionate, heterogeneous aspects and interactions among consequent labor cost, visit length, workday length, and resource utilization. The middle-impact simulations showed a 29% increase in daily labor costs and 28% shrinkage of the mar...Continue Reading

References

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Dec 17, 2005·Journal of the American Medical Informatics Association : JAMIA·Paul C TangDaniel Z Sands
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