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Use of the Hospital in a Randomized Trial of Prepaid Care
Albert L. Siu, MD, MSPH;
Arleen Leibowitz, PhD;
Robert H. Brook, MD, ScD;
Nancy S. Goldman, MD;
Nicole Lurie, MD, MSPH;
Joseph P. Newhouse, PhD
JAMA. 1988;259(9):1343-1346.
Abstract
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Health maintenance organizations (HMOs) achieve their cost savings through lower rates of hospital admissions. To determine whether HMOs selectively avoid discretionary hospitalizations, medical records were reviewed from a randomized trial where families were assigned to either HMO or fee-for-service care. Physicians who were blinded to system reviewed 244 medical records and judged the appropriateness both of the hospital setting and of the medical indications for hospitalization. The rate of discretionary surgery was lower in the HMO, while the rate of nondiscretionary surgery was equivalent in the two systems. For medical admissions, rates of discretionary and nondiscretionary admissions were lower in the HMO. There were no observable adverse effects on health from the lower rates of nondiscretionary hospitalization, either because the net effect on health was small or because the HMO substituted appropriate ambulatory services. We conclude that HMO reductions in hospitalization rates do not occur "across the board"; discretionary surgery is selectively avoided.
(JAMA 1988;259:1343-1346)
Author Affiliations
From the Health Sciences Program at The RAND Corporation, Santa Monica, Calif (Drs Siu, Leibowitz, Brook, Lurie, and Newhouse), and the Departments of Medicine (Drs Siu, Brook, Goldman, and Lurie) and Public Health (Dr Brook), Center for the Health Sciences, University of California at Los Angeles. Dr Lurie is currently a Henry J. Kaiser Family Foundation Faculty Scholar in General Internal Medicine at Hennepin County Medical Center, University of Minnesota, Minneapolis
Footnotes
Reprint requests to The RAND Corporation, 1700 Main St, PO Box 2138, Santa Monica, CA 90406-2138 (Dr Siu).
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