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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Course of patient-reported health outcomes in rheumatoid arthritis: comparison of longitudinal and cross-sectional approaches.

OBJECTIVE: To describe health outcomes reported by patients with rheumatoid arthritis ( RA), i.e., pain, disability and health-related quality of life, as a function of disease duration in a longitudinal approach, and to compare the course of patient-reported health outcomes by a longitudinal versus a cross-sectional approach. METHODS: Data were collected with 4 series of questionnaires between 1997 and 2002 among patients with RA (maximum number = 882) of varying disease duration. The course of patient-reported health outcomes as a function of disease duration was evaluated using both longitudinal data and cross-sectional data of the first series. RESULTS: The course of RA shows a different pattern for various health outcomes. We observed similar trends in health outcomes in this large patient sample using the longitudinal and the cross-sectional approach. CONCLUSION: Although longterm consequences of RA are preferably assessed in longer duration followup studies, cross-sectional studies, including patients with a broad range of disease durations, seem to provide fairly reliable estimates of the course of health outcomes.[1]

References

  1. Course of patient-reported health outcomes in rheumatoid arthritis: comparison of longitudinal and cross-sectional approaches. Rupp, I., Boshuizen, H.C., Roorda, L.D., Dinant, H.J., Jacobi, C.E., van den Bos, G. J. Rheumatol. (2006) [Pubmed]
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