Autism and ADHD assessments resulting in diagnosisAutism and ADHD assessments resulting in diagnosis
Produced by Health and Care JerseyAuthored by Health and Care Jersey and published on
28 August 2026.Prepared internally, no external costs.
Request 860047566
Of all Autism and ADHD assessments undertook in the last 12 months, covering both children and adults, what percentage ended up in diagnosis?
Response
73.8% of all assessments undertaken for ADHD or Autism across adults and children in the last 12 months, from August 2025 to July 2026, resulted in a diagnosis. Details are provided separately below for adults (those aged 18 and older) and children.
Health and Care Jersey:
82% of assessments undertaken on adults in the past 12 months have resulted in diagnosis.
Children, Young People, Education and Skills:
The total number of individual assessments undertaken for ADHD and Autism in the last 12 months, from August 2025 to July 2026, and the percentage resulting in a diagnosis are detailed in the table below. The figures represent the number of assessments undertaken, not the number of individual children assessed. Some children may have had an ADHD and an Autism assessment during this 12 month period.
| | Total by Assessment Type | Total Number of Diagnosis Given | % Assessment to Diagnosis |
| Autism | 244 | 162 | 66.4% |
| ADHD | 358 | 233 | 65.1% |
| Totals | 602 | 395 | 65.6% |
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