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How to use… an autism assessment tool
  1. Sophie E Carter1,
  2. Anita Hanson2,
  3. Clare Bravey3,
  4. Nagat Al Kabir4
  1. 1Allenscroft Child Development Centre, Birmingham Community Healthcare Trust, Birmingham, UK
  2. 2Community Paediatrics, Derbyshire Healthcare Foundation Trust, Derby, UK
  3. 3General Paediatrics, Birmingham Children's Hospital, Birmingham, UK
  4. 4Specialist Children's Services, Birmingham Community Healthcare Trust, Birmingham, UK
  1. Correspondence to Dr Sophie E Carter, Allenscroft Child Development Centre, Birmingham Community Healthcare Trust, Allenscroft Road, Kings Heath, Birmingham B14 6RP, UK; sophie.carter{at}bhamcommunity.nhs.uk

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Introduction

Autism is a neurodevelopmental condition affecting three main areas: social communication, social interaction and restricted patterns of behaviour, interests and activities. The Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM IV) requires six or more clinical manifestations across the three areas.1 In the International Classification of Disease, version 10 (ICD-10) childhood autism is under the umbrella heading of ‘pervasive developmental disorders’. Here the diagnosis includes the same three areas, manifestations of which should be seen by the age of 3 years. However, initial presentation may well consist of what ICD-10 describes as additional non-specific problems such as sleeping and eating disturbances, temper tantrums, aggression and phobias.2 The UK prevalence of autistic spectrum disorder (ASD) is thought to be from 60 per 10 000 to one per 100, although obviously studies vary in the diagnostic criteria used (DSM-IV vs ICD-10), the age group included in the study and the method of diagnosis.3–6

A diagnosis of autism or ASD will have emotional and practical implications for the child and their family. It can introduce the child and family to changes in their behavioural management, education, family dynamics, access to services and disability allowance.

Making a diagnosis of ASD is usually undertaken over a period of sessions, which may include initial screening (including questionnaires), thorough history taking and observation in the clinic. It may also include observation in different settings such as the school or a specific observation group within the health service, including assessments from a range of multidisciplinary team members including speech and language therapists and occupational therapists. There is also the opportunity to use specific diagnostic instruments as part of the assessment (see box 1 for examples).

Box 1

Examples of specific diagnostic instruments used as part of the assessment for ASD

  • Autism diagnostic observation schedule

  • Diagnostic …

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