• Sunmi Song, Jennifer E Graham-Engeland, and Junesun Kim.
• Rehabilitation Science Program, Department of Health Science, Graduate School, Korea University, Seoul, South Korea; Department of Health and Environmental Science, College of Health Science, Korea University, Seoul, South Korea; Department of Physical Therapy, College of Health Science, Korea University, Seoul, South Korea.
• J Pain. 2024 Feb 1; 25 (2): 362375362-375.

AbstractDespite known health disparities in chronic pain conditions between rural and urban adults, few studies have examined whether longitudinal associations between psychological stress and hand pain differ. Utilizing community-based cohort data, this study examined whether rural and urban adults differed in the extent to which psychological distress was associated with hand osteoarthritis (OA) symptoms and later functional limitations related to hand pain. Community-dwelling adults (mean age = 51.97, 52.3% women) in a rural (n = 2,971) and urban area (n = 2,782) provided demographic data at baseline and, at a 4-year follow-up, responded to questionnaires about psychological distress and clinical symptoms of hand OA. Levels of functional limitations in hands were assessed at an 8-year follow-up. Ordinal logistic and linear regression were conducted to examine the effects of psychological distress on hand OA symptoms and functional limitations, and whether associations between psychological distress and these pain outcomes were moderated by residential area. The results showed that psychological distress was associated with a higher risk for hand OA symptoms and functional limitations, even after adjusting for demographic and health covariates. There was significant moderation by residential area, such that the association between psychological distress and hand OA was significant only among rural adults and the association with functional limitations was stronger in rural adults than urban adults. Findings suggest greater vulnerability to hand arthritis and hand-related functional limitations among rural adults and the potential for tailored intervention programs to help resolve health disparities among rural communities. PERSPECTIVE: This study compares the association between psychological distress and hand pain outcomes between rural and urban adults using community-based cohort data and suggests that rural adults are more vulnerable to experiencing negative effects of psychological distress on concurrent hand OA symptoms and longitudinal functional limitations in hands.Copyright © 2024 United States Association for the Study of Pain, Inc. Published by Elsevier Inc. All rights reserved.

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