Growth in Health Information Exchange With ACO Market Penetration

AJMC January 17, 2022
Nate C. Apathy, PhD, A. Jay Holmgren, PhD, Rachel M. Werner, MD, PhD

Hospitals that participate in accountable care organizations (ACOs) expand their health information exchange networks as a result, but hospitals in markets with existing ACO infrastructure can expand more quickly.

ABSTRACT

Objectives: First, to assess whether hospitals expand the network breadth of their health information exchange (HIE) partners after joining an accountable care organization (ACO). Second, to analyze whether this HIE network expansion effect varies across markets with differing levels of ACO penetration.

Study Design: Difference-in-differences analyses of US nonfederal acute care hospitals, 2014-2017.

Methods: We used data from the American Hospital Association Annual Survey and Information Technology Supplement to measure hospital ACO participation, HIE network breadth (defined as number of different partner types), and ACO market penetration at the hospital...

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