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      At the intersection of ethnicity/race and poverty: knee pain and physical function

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          Abstract

          Background:

          Knee osteoarthritis (OA) disproportionately affects racial and ethnic minorities. non-Hispanic Blacks (NHB) report a higher prevalence and severity of knee OA symptoms than their non-Hispanic White (NHW) counterparts. The role of poverty in explaining this disparity remains unclear.

          Objective:

          The overall aim of this cross-sectional study was to determine whether ethnic/racial differences in knee pain and physical function varied according to poverty status.

          Design:

          NHB and NHW adults with or at risk of knee OA self-reported sociodemographic information, and completed the Western Ontario & McMaster Universities Osteoarthritis Index (WOMAC) and the Short Physical Performance Battery (SPPB). Annual income was adjusted for number of household occupants to determine poverty status (i.e., living above versus below poverty line).

          Results:

          Findings revealed 120 individuals living above the poverty line (49% NHB, 77% NHW) and 71 individuals living below the poverty line (51% NHB, 23% NHW). Adjusted multivariable models revealed significant ethnic/race by poverty status interactions for knee pain (p = .036) and physical function (p = .032) on the WOMAC, as well as physical function on the SPPB (p = .042). Post-hoc contrasts generally revealed that NHW adults living above the poverty line experienced the least severe knee pain and best physical function, while NHB adults living below the poverty line experienced the most severe knee pain and poorest physical function.

          Conclusions:

          Results of the present study add to the literature by emphasizing the importance of considering poverty and/or other indicators of socioeconomic status in studies examining ethnic/racial disparities in pain and physical function.

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          Author and article information

          Journal
          101628476
          42408
          J Racial Ethn Health Disparities
          J Racial Ethn Health Disparities
          Journal of racial and ethnic health disparities
          2197-3792
          2196-8837
          13 July 2019
          10 July 2019
          December 2019
          01 December 2020
          : 6
          : 6
          : 1131-1143
          Affiliations
          [1 ]University of Alabama at Birmingham, Department of Psychology,
          [2 ]University of Florida, Pain Research and Intervention Center of Excellence (PRICE),
          [3 ]University of Connecticut, Department of Psychological Sciences,
          [4 ]University of Tulsa, Department of Psychology,
          [5 ]University of Alabama at Birmingham, Division of Clinical Immunology & Rheumatology,
          [6 ]University of Alabama at Birmingham, Department of Biostatistics,
          [7 ]Oakland University, School of Nursing
          Author notes
          [* ]Corresponding author: Tel.: +1-205-934-6536; fax: +1-205-975-6110. bgoodin1@ 123456uab.edu . Address for corresponding author: Burel R. Goodin, University of Alabama at Birmingham, 1300 University Boulevard, Campbell Hall, Room 237E, Birmingham, AL 35294.
          Article
          PMC6832793 PMC6832793 6832793 nihpa1534267
          10.1007/s40615-019-00615-7
          6832793
          31292922
          c1604bc0-fb9a-4b47-aa7c-7f81a60b58f3
          History
          Categories
          Article

          osteoarthritis,physical function,knee pain,poverty,Ethnicity/race

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