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Relationship between subjectively-rated and objectively-tested physical function across six different medical diagnoses

Resource type
Authors/contributors
Title
Relationship between subjectively-rated and objectively-tested physical function across six different medical diagnoses
Abstract
OBJECTIVE: To quantify and compare associations and relationships between self-rated and tested assessments of mainly mobility-related physical function in different diagnoses. DESIGN: Six longitudinal cohort studies before and after inpatient rehabilitation. PATIENTS: Patients with whiplash-associated disorder (n = 71), low back pain (n = 121), fibromyalgia (n = 84), lipoedema (n = 27), lymphoedema (n = 78), and post-acute coronary syndrome (n = 64). METHODS: Physical function was measured with the self-rated Short-Form 36 Physical functioning (SF-36 PF) and with the tested 6-Min Walk Distance (6MWD) and assessed by correlation coefficients. Across the 6 cohorts, the relationship between the 2 scores was compared using the ratio between them. RESULTS: The correlations between the 2 scores were mostly moderate to strong at baseline (up to r = 0.791), and weak to moderate for the changes to follow-up (up to r = 0.408). The ratios SF-36 PF to 6MWD were 1.143-1.590 at baseline and 0.930-3.310 for the changes, and depended on pain and mental health. CONCLUSION: Moderate to strong cross-sectional and moderate to weak longitudinal correlations were found between the 6MWD and the SF-36 PF. Pain and mental health should be considered when interpreting physical function. For a comprehensive assessment in clinical practice and research, the combination of self-rated and tested physical function measures is recommended.
Publication
Journal of Rehabilitation Medicine
Volume
55
Pages
jrm9383
Date
2023-12-04
Journal Abbr
J Rehabil Med
Language
eng
ISSN
1651-2081
Library Catalog
PubMed
Citation
Benz, T., Lehmann, S., Sandor, P. S., & Angst, F. (2023). Relationship between subjectively-rated and objectively-tested physical function across six different medical diagnoses. Journal of Rehabilitation Medicine, 55, jrm9383. https://doi.org/10.2340/jrm.v55.9383