The British Journal of Rheumatology, Vol 36, 1304-1311, Copyright © 1997 by British Society for Rheumatology
LM Smedstad, P Vaglum, T Moum and TK Kvien
In this longitudinal study (12 and 24 months follow-up) of 216 patients
with early rheumatoid arthritis (RA) (< or = 4 yr duration), we assessed
the strength and stability of the relationship between psychological
distress and traditional clinical variables examined the ability of these
clinical variables to predict changes in mental distress, and explored the
directionality between mental distress and the other clinical variables.
Study variables were symptoms of anxiety and depression measured by the
Arthritis Impact Measurement Scales, tender joint counts, erythrocyte
sedimentation rate (ESR), and self- reported pain and disability.
Psychological distress showed high levels of stability over time. Pain and
disability were the two variables most strongly and consistently related to
mental distress. High levels of disability predicted an increase in
depression during the next year; otherwise, changes in psychological
distress were not predicted by disease-related variables. Attempts at
causal modelling of the temporal relationship between mental distress, pain
and disability failed to yield consistent results.
ORIGINAL PAPERS
The relationship between psychological distress and traditional clinical variables: a 2 year prospective study of 216 patients with early rheumatoid arthritis
Department of Behavioural Sciences in Medicine, University of Oslo, Norway.
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