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Table 2 (abstract A39). Autoimmune/ inflammation markers and complement activation markers at first presentation to our clinic and within four months of psychiatric symptom onset

From: Proceedings of the 2019 Childhood Arthritis and Rheumatology Research Alliance (CARRA) Annual Scientific Meeting

Autoimmunity Marker

N (%)

High Anti-Histone Antibody*

21/130 (16.2%)

High Anti-Thyroglobulin Antibody*

21/100 (21.0%)

High Thyroid Peroxidase Antibody *

15/104 (14.4%)

Positive Anti-Nuclear Antibody (>1:320)

34/138 (24.6%)

Elevated C1Q Binding Assay*

30/89 (33.7%)

Low C4**

27/73 (37.0%)

Elevated C4a*

51/73 (69.9%)

  1. Denominators reflect number of patients who had the specific laboratory parameter evaluated
  2. Abbreviations: MCV = Mean Corpuscular Volume
  3. *Above laboratory reference range
  4. **Outside age/sex-adjusted reference ranges
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Pediatric Rheumatology

ISSN: 1546-0096