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J Rheumatol. 2008 Feb;35(2):343-8. Epub 2007 Dec 15.

Evaluation of the presentation of systemic onset juvenile rheumatoid arthritis: data from the Pennsylvania Systemic Onset Juvenile Arthritis Registry (PASOJAR).

Author information

  • 1Department of Pediatrics, Division of Rheumatology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, USA. behrens@email.chop.edu

Abstract

OBJECTIVE:

To characterize the initial clinical and laboratory features of patients with systemic onset juvenile rheumatoid arthritis (soJRA) through a Web-based registry.

METHODS:

Patients diagnosed with soJRA in the last 15 years at 3 medical centers in Pennsylvania were identified. Data were collected retrospectively using a Web-based interface in compliance with patient privacy standards. Inferential statistics were used to compare features of patients with and without macrophage activation syndrome.

RESULTS:

We identified 136 patients; 88% of patients presented with arthritis (8% mono-, 45% oligo-, 47% polyarticular). The most common joints involved were the knee (68% of patients with arthritis), wrist (68%), and ankle (57%). The International League of Associations for Rheumatology criteria for systemic juvenile idiopathic arthritis (SJIA) identified only 30% of patients at presentation.

CONCLUSION:

We successfully characterized the presenting features of a relatively rare disease, soJRA, through the use of a Web-based registry. Current classification criteria for SJIA may not be particularly sensitive for diagnosis at presentation.

PMID:
18085728
[PubMed - indexed for MEDLINE]
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