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The road to efficiency? Re-examining the impact of the primary care physician workforce on health care utilization rates.

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The road to efficiency? Re-examining the impact of the primary care physician workforce on health care utilization rates.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wright, David Bradley Ricketts, Thomas C.
Spatial Coverage	United States
Description	Country affiliation: United States Author Affiliation: Wright DB ( University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States. bradwright@unc.edu)
Abstract	Research suggests that primary care physicians may help to control health care costs by encouraging more efficient service use. However, most studies do not account for data aggregation effects that can significantly affect the direction and magnitude of findings. To re-examine the association between the proportion of primary care physicians and health care utilization rates in an area, and investigate the potential impact of aggregating data to different geographic levels on these observed associations, we estimate four distinct cross-sectional multivariate regression models to predict health care utilization at the county level and the metropolitan statistical area (MSA) level using data from 2007. Our study focuses on health care utilization in the United States using inpatient admissions, outpatient visits, emergency room visits, and total (both inpatient and outpatient) surgeries as dependent variables in separate regressions. The key independent variable is the proportion of primary care physicians in the area. Several community-level control variables are also included. We find that a higher proportion of primary care physicians in the area's physician supply is associated with a decreased number of inpatient admissions at the MSA level, but not the county level, and a decreased number of emergency room visits at the county level, but not the MSA level. Outpatient visits and total surgeries are not associated with the proportion of primary care physicians. From our findings we are able to conclude that there is some evidence that a higher concentration of primary care physicians is associated with a decrease in health care utilization, but these findings depend on the level of aggregation. Investigators should be aware of the implications of aggregating data and acknowledge any resultant limitations.
File Format	HTM / HTML
ISSN	02779536
e-ISSN	18735347
Journal	Social Science & Medicine
Issue Number	12
Volume Number	70
Language	English
Publisher	Elsevier
Publisher Date	2010-06-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Medicine Delivery Of Health Care Utilization Physicians, Family Supply & Distribution Ambulatory Care Cross-sectional Studies Emergency Service, Hospital Multivariate Analysis Regression Analysis Small-area Analysis Surgical Procedures, Operative
Content Type	Text
Resource Type	Article
Subject	Medicine Health (social science) History and Philosophy of Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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