- Average age of PANS onset was 8.5 years;
- 48% had a family history (1rst degree relative) with developmental or neuropsychiatric disorders;
- 48% had a family history (1rst degree relative) with autoimmune or inflammatory diseases;
- 74% of the patients had been diagnosed previously with a developmental disorder or had associated symptoms.
- 63% of the children (N=19) who received antibiotic treatment showed improvement in symptoms, according to parental reports.