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Safety-net facilities and hospitalization rates of chronic obstructive pulmonary disease: a cross-sectional analysis of the 2007 Texas Health Care Information Council inpatient data

Authors Jackson BE, Suzuki S, Coultas D, Su F, Lingineni R, Singh KP, Bartolucci A, Bae S

Published Date November 2011 Volume 2011:6 Pages 563—571

DOI http://dx.doi.org/10.2147/COPD.S26072

Published 11 November 2011

Bradford E Jackson1, Sumihiro Suzuki1, David Coultas2, Fenghsiu Su1,3, Ravi Lingineni1, Karan P Singh1, Alfred Bartolucci4, Sejong Bae1
1Department of Biostatistics, University of North Texas Health Science Center School of Public Health, Fort Worth, TX, 2Department of Medicine, University of Texas Health Science Center at Tyler, Tyler, TX, 3Center for Learning and Development, University of North Texas Health Science Center, Fort Worth, TX, 4Department of Biostatistics, University of Alabama at Birmingham School of Public Health, Birmingham, AL, USA

Purpose: Geographic disparities in hospitalization rates for chronic obstructive pulmonary disease (COPD) have been observed in Texas. However, little is known about the sources of these variations. The purpose of this manuscript is to further explore the geographic disparity of COPD hospitalization rates in Texas by examining county-level factors affecting access to care.
Patients and methods: The study is a cross-sectional analysis of the 2007 Texas Health Care Information Council, Texas, demographer population projections and the 2009 Area Resource File (ARF). The unit of analysis was county-specific hospitalization rate, calculated as the number of discharges of county residents divided by county-level population estimates. Indicators of access to care included: type of safety-net facility and number of pulmonary specialists in a county. Safety-net facilities of interest were federally qualified health centers (FQHCs) and rural health clinics (RHCs).
Results: There was a significant difference (P < 0.05) in hospitalization rates according to health center presence. Counties with only FQHCs had the lowest COPD hospitalization rate (132 per 100,000 observations), and counties with only RHCs had the highest hospitalization rate (229 per 100,000 observations). The presence of a pulmonary specialist was associated with a significant decrease (25%) in hospitalization rates among counties with only FQHCs.
Conclusion: In Texas, counties with only FQHCs were associated with lower COPD hospitalization rates. The presence of a RHC alone may be insufficient to decrease hospitalizations from COPD. There are a number of factors that may contribute to these variations in hospitalization rates, such as racial/ethnic distribution, types and quality of services provided, and the level of rurality, which creates greater distances to care and lower concentration of hospitals and pulmonary specialists.

Keywords: health centers, COPD, health disparities

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