Tpbm. Suurmeijer et al., Quality of life profiles in the first years of rheumatoid arthritis: Results from the EURIDISS longitudinal study, ARTH RH ART, 45(2), 2001, pp. 111-121
Objective. The aim of this study was to examine the quality of life (QoL) p
rofiles of patients with early rheumatoid arthritis (RA) and to relate thes
e to disease and impairment variables as indicated, respectively, by erythr
ocyte sedimentation rate (ESR) and by tender joint count (Ritchie Articular
Index), fatigue, and pain.
Methods. The present study uses part of the European Research on Incapacita
ting Disease and Social Support data of 573 patients with recently diagnose
d RA (268 from the Netherlands, 216 from Norway, and 89 from France). A ser
ies of clinical and psychosocial data were collected on 4 (the Netherlands,
France) and 3 (Norway) occasions, with 1-year intervals separating the wav
es of data collection.
Results. Of the disease activity (ESR) and impairment variables (tender joi
nt count, fatigue, pain), fatigue was identified as the consequence of dise
ase that differentiated best on a series of QoL aspects such as disability,
psychological well-being, social support, and "overall evaluation of healt
h." Next came pain and tender joint count, and ESR showed by far the least
differentiating ability.
A principal-component analysis on the QoL measures used in this study yield
ed one general factor measuring "overall QoL." After rotation, two separate
factors were encountered, one referring to the physical domain and the oth
er to the psychological and social domains of QoL. Again, the QoL of RA pat
ients experiencing much fatigue appeared to decline the most.
Conclusions. Because of the highly variable nature of RA, impairments, acti
vities of daily living (ADL) and instrumental ADL restrictions, and psychos
ocial distress can vary erratically. In particular, "fatigue" as measured o
ver a period of 2 to 3 years distinguished best among RA patients as shown
by their QoL profiles. Although the physical domain was most affected, the
significant effect of RA on the psychosocial. domain should not be underest
imated.