The Quality of Health Care Delivered to Adults in the United States
Elizabeth A. McGlynn, Ph.D., Steven M. Asch, M.D., M.P.H., John Adams, Ph.D., Joan Keesey, B.A., Jennifer Hicks, M.P.H., Ph.D., Alison DeCristofaro, M.P.H., and Eve A. Kerr, M.D., M.P.H.
Background We have little systematic information about the extentto which standard processes involved in health care a key element of quality are delivered in the UnitedStates.
Methods We telephoned a random sample of adults living in 12metropolitan areas in the United States and asked them aboutselected health care experiences. We also received written consentto copy their medical records for the most recent two-year periodand used this information to evaluate performance on 439 indicatorsof quality of care for 30 acute and chronic conditions as wellas preventive care. We then constructed aggregate scores.
Results Participants received 54.9 percent (95 percent confidenceinterval, 54.3 to 55.5) of recommended care. We found littledifference among the proportion of recommended preventive careprovided (54.9 percent), the proportion of recommended acutecare provided (53.5 percent), and the proportion of recommendedcare provided for chronic conditions (56.1 percent). Among differentmedical functions, adherence to the processes involved in careranged from 52.2 percent for screening to 58.5 percent for follow-upcare. Quality varied substantially according to the particularmedical condition, ranging from 78.7 percent of recommendedcare (95 percent confidence interval, 73.3 to 84.2) for senilecataract to 10.5 percent of recommended care (95 percent confidenceinterval, 6.8 to 14.6) for alcohol dependence.
Conclusions The deficits we have identified in adherence torecommended processes for basic care pose serious threats tothe health of the American public. Strategies to reduce thesedeficits in care are warranted.
Source Information
From RAND, Santa Monica, Calif. (E.A.M., S.M.A., J.A., J.K., J.H., A.D.); the Veterans Affairs (VA) Greater Los Angeles Health Care System, Los Angeles (S.M.A.); the Department of Medicine, University of California Los Angeles, Los Angeles (S.M.A.); the VA Center for Practice Management and Outcomes Research, VA Ann Arbor Health Care System, Ann Arbor, Mich. (E.A.K.); and the Department of Medicine, University of Michigan, Ann Arbor (E.A.K.).
Address reprint requests to Dr. McGlynn at RAND, 1700 Main St., P.O. Box 2138, Santa Monica, CA 90407, or at beth_mcglynn{at}rand.org.
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