A reappraisal of private employers' role in providing health insurance.
BACKGROUND
In 1996, according to official figures, 61 percent of Americans received health insurance through employers. However, this estimate includes persons who relied primarily on government insurance such as Medicare, workers whose employers arranged their insurance but contributed nothing toward the premiums, and government employees whose private coverage was paid for by taxpayers.


METHODS
To estimate the number of persons whose principal health insurance was paid for in whole or in part by employers in the private sector and the number receiving government-funded insurance, we analyzed data from the March 1997 Current Population Survey. Approximately 130,000 persons representative of the noninstitutionalized U.S. population were sampled. We considered people to be covered principally by health insurance paid for by private-sector employers if they had no public insurance coverage and were covered by insurance from a non-governmental employer who paid all or part of their premiums. Those who were covered by Medicaid, Medicare, insurance resulting from former or current military service, or the Indian Health Service were considered to be receiving government insurance.


RESULTS
In 1996, 43.1 percent of the population (90 percent confidence interval, 42.7 to 43.5 percent) depended principally on health insurance paid for by private-sector employers, 34.2 percent (90 percent confidence interval, 33.8 to 34.6 percent) had publicly funded insurance, 7.1 percent (90 percent confidence interval, 6.8 to 7.6 percent) purchased their own coverage, and 15.6 percent (90 percent confidence interval, 15.3 to 15.9 percent) were uninsured. In only six states was more than half the population covered principally by health insurance paid for by private-sector employers.


CONCLUSIONS
Current definitions of health insurance overemphasize the role of private employers and underestimate the extent to which government pays for health insurance.
Carrasquillo
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Division of General Medicine, Columbia-Presbyterian Medical Center, New York, NY 10032, USA.
Himmelstein
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DU
Woolhandler
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Bor
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DH
D000293:Adolescent; D000328:Adult; D000368:Aged; D003625:Data Collection; D005260:Female; D006264:Health Benefit Plans, Employee / Q000145:classification / Q000706:statistics & numerical data*; D006801:Humans; D007348:Insurance, Health / Q000706:statistics & numerical data; D008297:Male; D008483:Medical Assistance / Q000706:statistics & numerical data*; D008875:Middle Aged; D017149:Private Sector / Q000706:statistics & numerical data*; D014481:United States