Health-related quality of life in early rheumatoid arthritis: impact of disease and treatment response
Department of Quantitative Health Sciences
Adult; Aged; Antirheumatic Agents; Arthritis, Rheumatoid; *Cost of Illness; Female; Humans; Immunoglobulin G; Male; Methotrexate; Middle Aged; Pain Measurement; Questionnaires; Receptors, Tumor Necrosis Factor; *Sickness Impact Profile; Treatment Outcome; United States
Biostatistics | Epidemiology | Health Services Research
OBJECTIVE: To document the burden of early rheumatoid arthritis (RA) on health-related quality of life (HQL) and compare changes in HQL across 2 treatments.
STUDY DESIGN: Analysis of HQL scores among patients enrolled in a multicenter, double-blind, randomized control trial of early RA treatment.
PATIENTS AND METHODS: A total of 424 patients with early RA were randomized to 1 of 2 treatment groups: etanercept or methotrexate. Patients were treated and followed for 52 weeks. Health-related quality of life was assessed before and throughout treatment using the Medical Outcomes Study Short Form 36 Health Survey (SF-36) and the Health Assessment Questionnaire (HAQ). The HQL burden of RA was established by comparing SF-36 scale scores to general US population norms. The impact of treatment on HQL was determined by comparing scores on both SF-36 and HAQ scales.
RESULTS: Before treatment, RA patients showed significant decrements in scores on all SF-36 scales and summary measures in comparison with age- and sex-matched general US population norms, multivariate analysis of variance (MANOVA) F(8,2815) = 204.6, P < .0001. After 52 weeks of treatment, 7 of 8 SF-36 scales and the physical summary measure remained significantly below the general US population norm, MANOVA F(8,2815) = 41.9, P < .0001. Patients randomized to etanercept showed significantly better HQL improvement earlier in treatment than patients randomized to methotrexate on the SF-36 physical summary, MANOVA F(10,4230) = 6.1, P< .0001, the SF-36 arthritis-specific health index, MANOVA F(10,4230) = 8.5, P < .0001, and the HAQ, MANOVA F(10,4230) = 14.7, P < .0001. At 52 weeks, there were no significant differences between treatment groups.
CONCLUSIONS: Rheumatoid arthritis places tremendous disease burden on patients' HQL. Successful treatment of early RA improved HQL. Etanercept showed a rapid HQL response.
Am J Manag Care. 2002 Mar;8(3):231-40. Link to article on publisher's site
The American journal of managed care
Kosinski, Mark; Kujawski, Sara C.; Martin, Richard; Wanke, Lee A.; Buatti, Mary C.; Ware, John E. Jr.; and Perfetto, Eleanor M., "Health-related quality of life in early rheumatoid arthritis: impact of disease and treatment response" (2002). Quantitative Health Sciences Publications and Presentations. 584.