title: A Digital Architecture for a Network-Based Learning Health System: Integrating Chronic Care Management, Quality Improvement, and Research.
abstract: BACKGROUND
  We collaborated with the ImproveCareNow Network to create a proof-of-concept architecture for a network-based Learning Health System. This collaboration involved transitioning an existing registry to one that is linked to the electronic health record (EHR), enabling a "data in once" strategy. We sought to automate a series of reports that support care improvement while also demonstrating the use of observational registry data for comparative effectiveness research.
  We worked with three leading EHR vendors to create EHR-based data collection forms. We automated many of ImproveCareNow's analytic reports and developed an application for storing protected health information and tracking patient consent. Finally, we deployed a cohort identification tool to support feasibility studies and hypothesis generation. There is ongoing uptake of the system. To date, 31 centers have adopted the EHR-based forms and 21 centers are uploading data to the registry. Usage of the automated reports remains high and investigators have used the cohort identification tools to respond to several clinical trial requests.
  The current process for creating EHR-based data collection forms requires groups to work individually with each vendor. A vendor-agnostic model would allow for more rapid uptake. We believe that interfacing network-based registries with the EHR would allow them to serve as a source of decision support. Additional standards are needed in order for this vision to be achieved, however.
  
  
  CONCLUSIONS
  We have successfully implemented a proof-of-concept Learning Health System while providing a foundation on which others can build. We have also highlighted opportunities where sponsors could help accelerate progress.
authors.affiliation: Cincinnati Children's Hospital Medical Center.
authors.forename: Keith
authors.initials: K
authors.lastname: Marsolo
authors.affiliation: Cincinnati Children's Hospital Medical Center.
authors.forename: Peter A
authors.initials: PA
authors.lastname: Margolis
authors.affiliation: Children's Hospital of Philadelphia.
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Forrest
authors.affiliation: University of Vermont.
authors.forename: Richard B
authors.initials: RB
authors.lastname: Colletti
authors.affiliation: Cincinnati Children's Hospital Medical Center.
authors.forename: John J
authors.initials: JJ
authors.lastname: Hutton
keywords: electronic health records; learning health system; learning networks; registries