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The Gerontologist, Vol 37, Issue 6 777-784, Copyright © 1997 by The Gerontological Society of America

ARTICLES

The effect of accurate patient screening on the cost-effectiveness of case management programs

DB Mukamel, CC Chou, JG Zimmer and BM Rothenberg
Department of Community & Preventive Medicine, University of Rochester School of Medicine & Dentistry, NY 14642, USA. [email protected]

Case management programs are expensive and therefore require careful screening of enrollees to ensure cost-effectiveness. Screening tools, however, are imperfect, with positive predictive values usually below 50%. This article examines the relationship between the accuracy of the screening tools and the cost-effectiveness of case management. Using data from a Medicare health maintenance organization (HMO), we develop an optimized 5-question screening tool. We then simulate the use of this screening tool and its impact on the cost-effectiveness of several hypothetical case management programs. The article demonstrates that even screening tools with only 20-30% positive predictive value could turn a case management program into a cost-effective program.




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Copyright © 1997 by The Gerontological Society of America.