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Related Experiment Videos

The Oslo experience with arthritis registries.

T K Kvien1, T Uhlig

  • 1Oslo City Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway. t.k.kvien@ioks.uio.no

Clinical and Experimental Rheumatology
|February 19, 2004
PubMed
Summary
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Early rheumatoid arthritis (RA) research faces challenges with classification criteria and disease heterogeneity. Data indicate RA often begins after age 60, with criteria infrequently met early on.

Area of Science:

  • Rheumatology
  • Clinical Epidemiology

Background:

  • The Oslo experience provides insights into early rheumatoid arthritis (RA) through patient registers and longitudinal follow-up.
  • Research on early arthritis necessitates addressing classification criteria, incidence shifts, and disease heterogeneity.

Purpose of the Study:

  • To evaluate the appropriateness of current RA classification criteria for early disease.
  • To investigate the incidence of RA in elderly patients.
  • To explore the heterogeneity of early RA.

Main Methods:

  • Analysis of data from a rheumatoid arthritis patient register.
  • Longitudinal follow-up of patients diagnosed with early RA.

Main Results:

  • Three key items of the current RA classification criteria are infrequently fulfilled in the early stages of the disease.

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  • Rheumatoid arthritis incidence shows a shift towards patients over the age of 60.
  • Disease onset can be defined by symptom onset or by fulfillment of classification criteria, with no significant impact on longitudinal outcomes.

    • Conclusions:

    • Current RA classification criteria may require revision for early disease detection.
    • The increasing incidence of RA in older adults warrants specific attention.
    • Defining disease onset does not appear to affect long-term RA patient outcomes.