Lisa Ward, MD, MScPH, MS; Peter Franks, MD
Acknowledgments: The authors thank Patrick Romano, MD, MPH, for insightful comments on this manuscript. They also thank the Center for Health Services Research in Primary Care, specifically, members of the Primary Care Outcomes Research Seminar at University of California, Davis, for constructive feedback on this project.
Potential Financial Conflicts of Interest: None disclosed.
Requests for Single Reprints: Lisa Ward, MD, MScPH, MS, Department of Family and Community Medicine, University of California, San Francisco, 1001 Potrero Avenue, Ward 83, San Francisco, CA 94110; e-mail, firstname.lastname@example.org.
Current Author Addresses: Dr. Ward: Department of Family and Community Medicine, University of California, San Francisco, 1001 Potrero Avenue, Ward 83, San Francisco, CA 94110.
Dr. Franks: Center for Health Services Research in Primary Care, Department of Family and Community Medicine, University of California, Davis, 4860 Y Street, Suite 2300, Sacramento, CA 95817.
Author Contributions: Conception and design: P. Franks.
Analysis and interpretation of the data: L. Ward, P. Franks.
Drafting of the article: L. Ward, P. Franks.
Critical revision of the article for important intellectual content: L. Ward, P. Franks.
Final approval of the article: L. Ward, P. Franks.
Statistical expertise: L. Ward, P. Franks.
Ward L, Franks P. Changes in Health Care Expenditure Associated with Gaining or Losing Health Insurance. Ann Intern Med. 2007;146:768-774. doi: 10.7326/0003-4819-146-11-200706050-00005
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Published: Ann Intern Med. 2007;146(11):768-774.
More than 46 million persons in the United States are uninsured (1). However, this point-in-time estimate may underrepresent health insurance disruptions; 38% of the population younger than 65 years (85 million persons) were uninsured for some time from 1996 to 1999 (2). Cross-sectional studies suggest that lack of health insurance compromises access to health care, utilization of preventive health services, and chronic disease management (3–7). However, the underlying association between health insurance coverage and utilization or services is debatable (8).
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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