Can we distinguish the consequences of early maltreatment on child behaviour from idiopathic autism?

This study compared children who experienced early abuse or neglect with children who have autism. Researchers found that over 60% of children with maltreatment history showed autism-like behaviours that met diagnostic criteria. The symptoms were very similar between both groups, except children with typical autism had more repetitive behaviours. This makes it very difficult to tell the difference between autism and trauma-related behaviours that look like autism.

This matched-comparison study examined 46 children with early maltreatment history and 47 children with idiopathic autism spectrum disorders to identify distinguishing clinical features. Both groups had normal-range IQ and were predominantly male. Over 60% of formerly maltreated children met ASD diagnostic criteria based on standardised assessments. Autistic symptom profiles were remarkably similar between groups, with the only significant difference being more pronounced repetitive and stereotyped behaviours in the idiopathic ASD group.

Both groups showed similar prevalence of emotional and behavioural disorders. The findings suggest that autistic-like behaviours following early maltreatment are largely indistinguishable from idiopathic autism, raising important questions about differential diagnosis and underlying mechanisms.

Clinicians should carefully consider maltreatment history when assessing autism-like behaviours. Current diagnostic tools may not adequately distinguish between trauma-related presentations and idiopathic autism. This has significant implications for treatment planning and intervention selection.

Small sample size limits generalisability. Cross-sectional design prevents understanding of developmental trajectories. The study doesn't clarify specific types or timing of maltreatment. No long-term follow-up data to assess stability of presentations over time.

To identify clinical features that could distinguish children presenting with autistic-like features and a history of severe early maltreatment from children with idiopathic autism spectrum disorders (ASDs). Matched-comparison study. Great Ormond Street Hospital, UK. 46 children with a history of early maltreatment, mean (SD) age 10.6 (3.3) years and 47 children with an ASD, mean (SD) age 10.4 (2.9) years. A range of standardised interview and observational measures that are designed to quantify autistic traits.

Caregiver and teacher reports were obtained on broader aspects of behavioural and emotional adjustment. Both groups had normal range IQ and were predominantly male. On the basis of autistic traits alone, caregiver interview and structured observation concurred that over 60% of the formerly maltreated children met criteria for an ASD. Autistic symptom profiles were very similar in both groups, although children with idiopathic ASD had significantly more marked repetitive and stereotyped behaviours.

Teacher and caregiver reports indicated that children from both groups had an increased and broadly similar prevalence of emotional and behavioural disorders. Children presenting with a history of early maltreatment, who show autistic traits of behaviour, have a high risk of meeting diagnostic criteria for ASD. Their symptom profiles are virtually indistinguishable from children with idiopathic autism.