Assessing Trends in Hospital System Structures From 2008 to 2015

Area of Science:

• Health Services Research
• Healthcare Management
• Health Policy Analysis

Background:

• The Affordable Care Act (ACA) aimed to improve healthcare coordination across the continuum of care.
• The impact of the ACA on the structural evolution of hospital systems remains understudied.
• Hospital system structure significantly influences healthcare costs, quality, and accessibility.

Purpose of the Study:

• To analyze trends in the structural characteristics of hospital systems.
• To understand how hospital system organization and integration have evolved.

Main Methods:

• Utilized American Hospital Association (AHA) Annual Survey data from 2008 to 2015.
• Analyzed hospital systems at the system level, examining number, size, ownership, and geospatial arrangement.
• Assessed trends in integration with outpatient services.

Main Results:

• Observed an increase in system-affiliated hospitals and the number of hospital systems between 2008 and 2015.
• Found a significant shift from moderately centralized to centralized hospital systems (19.8% vs. 4.7%, P<0.001).
• Noted a move from hub-and-spoke to regional geospatial designs (20.0% vs. 8.2%, P<0.05) and increasing outpatient service integration.

Conclusions:

• Hospital systems are increasingly adopting regional designs and centralizing operations.
• The growing integration with outpatient services suggests a strategic expansion along the continuum of care.
• These structural changes may enhance care coordination and service delivery post-ACA.