Physician investment in hospitals: Specialization, selection, and quality in cardiac care

Area of Science:

• Health Economics
• Hospital Management
• Patient Outcomes

Background:

• Physician-owned hospitals present economic complexities, with potential for both "cherry-picking" profitable patients and offering specialized, high-quality care.
• Understanding the true impact of physician ownership on patient outcomes and market dynamics is crucial for healthcare policy.

Purpose of the Study:

• To investigate whether cardiac patients experience improved mortality rates at physician-owned hospitals.
• To examine the extent of "cherry-picking" (selecting profitable patients) in physician-owned hospitals.
• To identify factors contributing to patient selection in physician-owned healthcare facilities.

Main Methods:

• Employed multiple identification strategies to analyze mortality data for cardiac patients.
• Utilized aggregate ownership data within a hospital choice model to infer physician-owner preferences.
• Assessed patient selection biases, including "cherry-picking" and advantageous selection.

Main Results:

• No statistically significant improvement in mortality was observed for cardiac patients treated at physician-owned hospitals.
• Analysis of patient populations ruled out significant "cherry-picking" by physician-owners within their patient cohorts.
• Advantageous patient selection into physician-owned hospitals was primarily driven by facility location and the healthier baseline health of the overall patient population.

Conclusions:

• Physician ownership of hospitals does not demonstrably reduce cardiac patient mortality.
• Patient selection into physician-owned facilities is influenced more by location and pre-existing patient health profiles than by active "cherry-picking" of profitable cases.
• Further research is needed to fully understand the nuanced economic and quality-of-care implications of physician-owned hospitals.