Extended report
Benchmarking: the five year outcome of rheumatoid arthritis
assessed using a pain score, the Health Assessment Questionnaire, and
the Short Form-36 (SF-36) in a community and a clinic based sample
N J Wilesa, D G I Scottb, E M Barrettc, P Merryb, E Arieb, K Gaffneyb, A J Silmana, D P M Symmonsa
a ARC Epidemiology
Unit, University of Manchester Medical School, Oxford Road, Manchester
M13 9PT, UK, b Department of Rheumatology, Norfolk and
Norwich Hospital, Norfolk NR1 3SR, UK, c Norfolk Arthritis Register, St Michael's
Hospital, Aylsham, Norfolk NR11 6NA, UK
Correspondence to: Professor Symmons deborah.symmons{at}man.ac.uk
Accepted for publication 27 March 2001
BACKGROUND
Treatment,
and therefore outcome, of rheumatoid arthritis (RA) will improve in the
next few years. However, improvement in outcome can only be judged
against the probability of certain outcomes with current conventional treatment.
AIM
To document the
five year outcome of RA in the late 1990s.
SETTING
Norfolk
Arthritis Register (NOAR).
DESIGN
Longitudinal
observational cohort study.
METHODS
318 patients
with recent onset inflammatory polyarthritis recruited by NOAR in
1990-91 completed five years of follow up. Four groups were assessed:
the whole cohort, all those referred to hospital, those who satisfied
criteria for RA at baseline, and those referred to hospital who
satisfied criteria for RA at baseline. Outcome was assessed with a
visual analogue scale for pain, the Health Assessment Questionnaire
(HAQ), and the Short Form-36 (SF-36).
RESULTS
Of the RA
hospital attenders, 50% had a visual analogue scale pain score of 5 cm
or less and an HAQ score of 1.125 or less. SF-36 scores were reduced in
all domains. Results are presented as cumulative percentages.
CONCLUSIONS
These
results can be used for comparison and to set targets for improvement.
© 2001 by Annals of the Rheumatic Diseases
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