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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