Paediatric acute-onset neuropsychiatric syndrome in children and adolescents: an observational cohort study

Johnson, Fernell, Preda, Wallin, Fasth, Gillberg, Gillberg.
Lancet Child Adolesc Health-2019

Excerpt: Of 41 patients (37 referred and four visited upon parents’ request), 23 (ten girls and 13 boys) met PANS diagnostic criteria. Mean age at PANS onset was 8·5 years (SD 3·37). 11 (48%) patients had a family history of developmental or neuropsychiatric disorders in a first-degree relative and 11 (48%) had a family history of autoimmune or inflammatory diseases in a first-degree relative.