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Abstract
Objective: Population-based studies on the trends and effects of modern antirheumatic treatment are scarce. The aim of this study was to examine trends in treatment, health-related quality of life (HRQL), and disease outcome in a population-based register of patients with rheumatoid arthritis (RA) in Malmö, Sweden.
Methods: A continuously updated population-based RA register was established in the city of Malmö, southern Sweden, in 1997. Self-completed postal questionnaires issued in 1997, 2002, and 2005 were used to collect information on demographics, medication, and health status. Cross-sectional comparisons were made between data from 1997, 2002, and 2005.
Results: Between 1997 and 2005, the proportion of patients treated with any disease-modifying anti-rheumatic drug (DMARD) including biologics increased substantially (from 52% to 87%), as well as the proportion treated with methotrexate (from 23% to 52%) and biologics (almost exclusively tumour necrosis factor inhibitors) (from 0% to 20%). Twelve per cent of RA patients received biologics 5 years from disease onset in 2005. In parallel with changes in treatment, mean Health Assessment Questionnaire (HAQ) scores (1.19 vs. 0.89) and all Short Form 36 (SF-36) subscales improved from 1997 to 2005 (non-overlapping confidence intervals).
Conclusion: Between 1997 and 2005, there was a substantial increase in the use of DMARDs, which was accompanied by improved mean HAQ and SF-36 scores in cross-sectional comparisons. These results support the concept that more intensive treatment with DMARDs and biologics can have profound effects on the overall health status in RA patients at the population level.
Acknowledgements
We thank Jan-Åke Nilsson for help with the statistical analyses. This study was supported by grants from the Swedish Society of Medicine, the Swedish Rheumatism Association, and the Research Department of the County Council of Halland.