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Adapting the Index of Relative Rurality (IRR) to Estimate Rurality at the ZIP Code Level: A Rural Classification System in Health Services Research

Inagami, S and Gao, S and Karimi, H and Shendge, MM and Probst, JC and Stone, RA (2016) Adapting the Index of Relative Rurality (IRR) to Estimate Rurality at the ZIP Code Level: A Rural Classification System in Health Services Research. Journal of Rural Health, 32 (2). 219 - 227. ISSN 0890-765X

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Abstract

© 2016 National Rural Health Association. Background: Accurate analysis of health problems facing rural residents depends on how rurality is defined. Health services research relies frequently on the rural urban commuting area (RUCA) codes to estimate rurality at the small area level. We modified the county-level Index of Relative Rurality (IRR) to the ZIP code level (IRR ZIP ) to create an alternative small-area-level rural classification system. We then compared how the 2 rural classification systems differ in how rural areas and populations are defined and in methodological analysis. Methods: We linked data for veterans (n = 37,466) who attended the VA Pittsburgh Healthcare System to 2000 United States Census and the US Department of Agriculture's Economic Research Service data. Results: The RUCA and the IRR ZIP do not consistently classify the same ZIP code areas and populations as rural. Using the IRR ZIP , each 10th increment in increased rurality was associated with a 2.6 increased odds of receiving primary care at a satellite clinic. Conclusions: The IRR ZIP is a straightforward measure that is easy to use and interpret and may be a relevant alternative rural classification system that can be used in health services research.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Inagami, S
Gao, S
Karimi, Hhkarimi@pitt.eduHKARIMI
Shendge, MM
Probst, JC
Stone, RAroslyn@pitt.eduROSLYN
Date: 1 March 2016
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Journal of Rural Health
Volume: 32
Number: 2
Page Range: 219 - 227
DOI or Unique Handle: 10.1111/jrh.12148
Institution: University of Pittsburgh
Schools and Programs: School of Information Sciences > Information Science
Refereed: Yes
ISSN: 0890-765X
Date Deposited: 15 Jun 2016 19:21
Last Modified: 11 Dec 2017 17:55
URI: http://d-scholarship.pitt.edu/id/eprint/28199

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