Independent associations of socioeconomic factors with disability and pain in adults with knee osteoarthritis
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Cleveland, Rebecca J, et al. Independent Associations of Socioeconomic Factors with Disability and Pain In Adults with Knee Osteoarthritis. BioMed Central Ltd, 2013. https://doi.org/10.17615/er4b-j336APA
Cleveland, R., Luong, M., Knight, J., Schoster, B., Renner, J., Jordan, J., & Callahan, L. (2013). Independent associations of socioeconomic factors with disability and pain in adults with knee osteoarthritis. BioMed Central Ltd. https://doi.org/10.17615/er4b-j336Chicago
Cleveland, Rebecca J, My Linh N Luong, Joshua B Knight, Britta Schoster, Jordan B Renner, Joanne Jordan, and Leigh Callahan. 2013. Independent Associations of Socioeconomic Factors with Disability and Pain In Adults with Knee Osteoarthritis. BioMed Central Ltd. https://doi.org/10.17615/er4b-j336- Creator
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Cleveland, Rebecca J
- Affiliation: School of Medicine, Thurston Arthritis Research Center
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Luong, My-Linh N
- Affiliation: Gillings School of Global Public Health, Department of Health Behavior
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Knight, Joshua B
- Affiliation: School of Medicine
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Schoster, Britta
- Affiliation: School of Medicine, Thurston Arthritis Research Center
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Renner, Jordan B
- Affiliation: School of Medicine, Thurston Arthritis Research Center
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Jordan, Joanne
- Affiliation: School of Medicine, Thurston Arthritis Research Center
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Callahan, Leigh
- Affiliation: School of Medicine, Thurston Arthritis Research Center
- Abstract
- Abstract Background The purpose of this study is to explore the relationship between function, pain and stiffness outcomes with individual and community socioeconomic status (SES) measures among individuals with radiographic knee osteoarthritis (rOA). Methods Cross-sectional data from the Johnston County Osteoarthritis Project were analyzed for adults age 45 and older with knee rOA (n = 782) and a subset with both radiographic and symptomatic knee OA (n = 471). Function, pain and stiffness were measured using the Western Ontario and McMasters Universities Index of Osteoarthritis (WOMAC). Individual SES measures included educational attainment (<12 years, ≥12 years) and occupation type (managerial, non-managerial), while community SES was measured using Census block group poverty rate (<12%, 12-25%, ≥25%). SES measures were individually and simultaneously examined in linear regression models adjusting for age, gender, race, body mass index (BMI), occupational physical activity score (PAS), comorbidity count, and presence of hip symptoms. Results In analyses among all individuals with rOA, models which included individual SES measures were observed to show that occupation was significantly associated with WOMAC Function (β =2.91, 95% Confidence Interval (CI) = 0.68-5.14), WOMAC Pain (β =0.93, 95% CI = 0.26-1.59) and WOMAC Total scores (β =4.05, 95% CI = 1.04-7.05), and education was significantly associated with WOMAC Function (β =3.57, 95% CI = 1.25-5.90) and WOMAC Total (β =4.56, 95% CI = 1.41-7.70) scores. In multivariable models including all SES measures simultaneously, most associations were attenuated. However, statistically significant results for education remained between WOMAC Function (β =2.83, 95% CI = 0.38-5.28) and WOMAC Total (β =3.48, 95% CI = 0.18-6.78), as well as for the association between occupation and WOMAC Pain (β =0.78, 95% CI = 0.08-1.48). In rOA subgroup analyses restricted to those with symptoms, we observed a significant increase in WOMAC Pain (β =1.36, 95% CI = 0.07-2.66) among individuals living in a block group with poverty rates greater than 25%, an association that remained when all SES measures were considered simultaneously (β =1.35, 95% CI = 0.06-2.64). Conclusions Lower individual and community SES are both associated with worse function and pain among adults with knee rOA.
- Date of publication
- October 17, 2013
- DOI
- Identifier
- Resource type
- Article
- Rights statement
- In Copyright
- Rights holder
- Rebecca J Cleveland et al.; licensee BioMed Central Ltd.
- License
- Journal title
- BMC Musculoskeletal Disorders
- Journal volume
- 14
- Journal issue
- 1
- Page start
- 297
- Language
- English
- Is the article or chapter peer-reviewed?
- Yes
- ISSN
- 1471-2474
- Bibliographic citation
- BMC Musculoskeletal Disorders. 2013 Oct 17;14(1):297
- Publisher
- BioMed Central Ltd
- Access right
- Open Access
- Date uploaded
- July 16, 2016
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