Multiple psychological factors predict pain and disability among community-dwelling knee osteoarthritis patients : a five-year prospective study

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http://hdl.handle.net/10138/327106

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Helminen , E-E , Arokoski , J P A , Selander , T A & Sinikallio , S H 2020 , ' Multiple psychological factors predict pain and disability among community-dwelling knee osteoarthritis patients : a five-year prospective study ' , Clinical Rehabilitation , vol. 34 , no. 3 , pp. 404-415 . https://doi.org/10.1177/0269215519900533

Title: Multiple psychological factors predict pain and disability among community-dwelling knee osteoarthritis patients : a five-year prospective study
Author: Helminen, Eeva-Eerika; Arokoski, Jari P. A.; Selander, Tuomas A.; Sinikallio, Sanna H.
Contributor: University of Helsinki, University of Helsinki
Date: 2020-03
Language: eng
Number of pages: 12
Belongs to series: Clinical Rehabilitation
ISSN: 0269-2155
URI: http://hdl.handle.net/10138/327106
Abstract: Objective: To identify predictors of long-term pain and disability in knee osteoarthritis. Design: A longitudinal cohort study of five years. Setting: Primary care providers. Subjects: In all, 108 patients (mean age = 63.6 years, standard deviation (SD) = 7.2 years) with knee pain (> 40 mm on a 100 mm visual analogue scale in the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index pain scale) and radiographic grading (Kellgren-Lawrence: 2-4) of knee osteoarthritis who participated in a randomized controlled trial. Main measures: Disease-specific pain and functioning were assessed using the corresponding WOMAC subscales. Generic functioning was assessed by the RAND-36 subscales for function and physical and mental component summary scores. Possible baseline predictors for these outcomes were (1) demographic and disease-related variables and (2) psychological variables of mood (anxiety, depression), pain-related cognitions (pain self-efficacy, pain catastrophizing, kinesiophobia), and positive resource factors (life satisfaction, sense of coherence). Results: Multivariate linear mixed model analyses revealed that minimal anxiety at baseline predicted significantly better results for pain (WOMAC, P = 0.019) and function (WOMAC, P = 0.001, RAND-36 function P = 0.001). High pain self-efficacy predicted significantly better scores in RAND-36 function (P = 0.006), physical (P = 0.004) and mental (P = 0.001) component summaries. Pain catastrophizing predicted higher pain (P = 0.015), whereas fear of movement predicted poorer functioning in RAND-36 physical (P = 0.016) and mental (P = 0.009) component summaries. Those satisfied with life reported higher scores in RAND-36 function (P = 0.002) and mental component summary (P = 0.041). A low number of comorbidities predicted significantly better results in pain (WOMAC P = 0.019) and function (WOMAC P = 0.033, RAND-36 P = 0.009). Conclusion: Anxiety, pain-related cognitions, and psychological resources predict symptoms in knee osteoarthritis in the long term.
Subject: Knee osteoarthritis
pain
disability
predictors
psychological factors
REPORTED LIFE SATISFACTION
HIP OSTEOARTHRITIS
FINNISH VERSION
WESTERN-ONTARIO
PRIMARY-CARE
DEPRESSION
ANXIETY
ASSOCIATION
VALIDATION
ARTHRITIS
3126 Surgery, anesthesiology, intensive care, radiology
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