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The Effect of coinsurance on the health of adults : results from the Rand Health Insurance Experiment

Author: Robert H Brook; United States. Department of Health and Human Services.; Rand Corporation.; Rand Health Insurance Experiment.
Publisher: Santa Monica, Calif. : Rand, [1984]
Series: R (Rand Corporation), R-3055-HHS.; Health insurance experiment series.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:
Does free medical care lead to better health than insurance plans that require the patient to shoulder part of the cost? In an effort to answer this question, the authors studied 3,958 people between the ages of 14 and 61 who were free of disability that precluded work and had been randomly assigned to a set of insurance plans for three or five years. One plan provided free care; the others required enrollees to pay  Read more...
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Document Type: Book
All Authors / Contributors: Robert H Brook; United States. Department of Health and Human Services.; Rand Corporation.; Rand Health Insurance Experiment.
ISBN: 0833006142 9780833006141
OCLC Number: 11444364
Notes: "December 1984."
"R-3055-HHS."
Description: xv, 108 pages ; 23 cm.
Series Title: R (Rand Corporation), R-3055-HHS.; Health insurance experiment series.
Responsibility: Robert H. Brook [and others] ; prepared under a grant from the U.S Department of Health and Human Services.

Abstract:

Does free medical care lead to better health than insurance plans that require the patient to shoulder part of the cost? In an effort to answer this question, the authors studied 3,958 people between the ages of 14 and 61 who were free of disability that precluded work and had been randomly assigned to a set of insurance plans for three or five years. One plan provided free care; the others required enrollees to pay a share of their medical bills. As reported in R-2847-HHS, patients in the latter group made approximately one-third fewer visits to a physician and were hospitalized about one-third less often. For persons with poor vision and for low-income persons with high blood pressure, free care brought an improvement (vision better by 0.2 Snellen lines, diastolic blood pressure lower by 3 mm Hg); better control of blood pressure reduced the calculated risk of early death among those at high risk. For the average participant, as well as for subgroups differing in income and initial health status, no significant effects were detected on eight other measures of health status and health habits. Confidence intervals for these eight measures were sufficiently narrow to rule out all but a minimal influence, favorable or adverse, of free care for the average participant. For some measures of health in subgroups of the population, however, the broader confidence intervals make this conclusion less certain.

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