Rheumatology Advance Access originally published online on November 30, 2004
Rheumatology 2005 44(3):360-365; doi:10.1093/rheumatology/keh484
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Rheumatology Vol. 44 No. 3 © British Society for Rheumatology 2004; all rights reserved
The patient's perspective and rheumatoid arthritis disease activity indexes
Second Department of Medicine, Humanisklinikum Lower Austria, Lower Austrian Center for Rheumatology, Stockerau, Austria.
Correspondence to: B. F. Leeb, Second Department of Medicine, Humanisklinikum Lower Austria Lower Austrian Center for Rheumatology, A-2000 Stockerau, Landstrasse 18, Austria. E-mail: leeb.khstockerau{at}aon.at
Background. Monitoring disease activity in rheumatoid arthritis (RA) patients by composite indexes is regarded as obligatory when following the recent recommendations for therapy. Whether these recommendations and the patient's perspective are in congruence is a crucial question with respect to the patient's compliance. The aim of the study was to obtain information on the patient's perspective with respect to the disease activity indexes used most often.
Methods. Two hundred and seven RA patients (157 female, 50 male; mean age 59.03 yr, 17–86 yr) were enrolled in this cross-sectional evaluation. The patients’ satisfaction [PATSAT (Austrian school mark system) 1 = excellent to 5 = unsatisfactory] and the patients’ attitude to therapy (PATATT 1 = reduction, 2 = no change, 3 = increase) were assessed and related to the 28-joint Disease Activity Score (DAS28), the Simplified Disease Activity Index (SDAI) and the Modified Health Assessment Questionnaire (M-HAQ). Statistical evaluation was carried out by applying the Mann–Whitney U test, calculating 
2 and ANOVA.
Results. According to the DAS28 and the M-HAQ, patients were at a moderately active disease stage and had low functional deficiency. PATSAT was significantly correlated to the disease activity indexes (all PS 
0.002). The mean DAS28 (2.56) at PATSAT 1 was within the remission range, whereas at PATSAT 5 a mean of 5.52 indicated highly active disease. PATATT was found to be related to PATSAT, but did not completely parallel it. Reduction of therapy was intended at a mean DAS28 of 2.87, whereas a request for an increase did not occur before a mean DAS28 of 4.92.
Conclusion. The patients’ therapeutic attitudes are somewhat in line with their satisfaction, which mirrors disease activity to a great extent, though not with the common therapeutic recommendations. The DAS28 proved to be superior to both other indexes taking account of the patient's perspective. These results may provide guidance in patient care and education as well as therapeutic strategies.
KEY WORDS: Rheumatoid arthritis, Disease activity measurement, Patient's perspective
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  B. RINTELEN, P. M. HAINDL, J. SAUTNER, B. A. LEEB, C. DEUTSCH, and B. F. LEEB The Rheumatoid Arthritis Disease Activity Index-5 in Daily Use. Proposal for Disease Activity Categories J Rheumatol, May 1, 2009; 36(5): 918 - 924. [Abstract] [Full Text] [PDF]
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