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ABSTRACT: Objectives
To evaluate self-reported and assessor-reported joint counts for pain and their value in measuring pain and joint activity in hand OA patients.Methods
A total of 524 patients marked painful joints on hand diagrams. Nurses assessed tenderness upon palpation. Pain was measured with a visual analogue scale pain and the Australian/Canadian hand OA index subscale pain. Synovitis and bone marrow lesions in right hand distal/proximal interphalangeal joints on MRI served as measure of joint activity. Agreement was assessed on the patient (intraclass correlation coefficient, Bland-Altman plot) and joint level (percentage absolute agreement). Correlations with measures of pain and joint activity were analysed, and joint level associations with synovitis/bone marrow lesions were calculated.Results
Self-reported painful joint count (median 8, interquartile range 4-13) was consistently higher than assessor-reported tender joint count (3, 1-7). Agreement between patients and nurses on overall scores was low. Percentage absolute agreement on the joint level was 61-89%. Joint counts correlated similarly but weakly with measures of pain and joint activity (r = 0.14-0.38). On the joint level, assessor-reported tenderness was more strongly associated with synovitis/bone marrow lesions than self-reported pain.Conclusion
In hand OA, self- and assessor-reported joint counts cannot be used interchangeably, and measure other pain aspects than questionnaires. Assessor-reported tenderness was most closely related to MRI-defined joint activity.
SUBMITTER: Kroon FPB
PROVIDER: S-EPMC7850158 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Kroon Féline P B FPB Damman Wendy W van der Plas Johan L JL van Beest Sjoerd S Rosendaal Frits R FR van der Heijde Désirée D Kloppenburg Margreet M
Rheumatology (Oxford, England) 20200501 5
<h4>Objectives</h4>To evaluate self-reported and assessor-reported joint counts for pain and their value in measuring pain and joint activity in hand OA patients.<h4>Methods</h4>A total of 524 patients marked painful joints on hand diagrams. Nurses assessed tenderness upon palpation. Pain was measured with a visual analogue scale pain and the Australian/Canadian hand OA index subscale pain. Synovitis and bone marrow lesions in right hand distal/proximal interphalangeal joints on MRI served as me ...[more]