15
Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Embed Size (px)

Citation preview

Page 1: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Assessment of autism in a survey of adultsAdult Psychiatric Morbidity Survey 2007

Page 2: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Policy focus

Page 3: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

More common among...• boys (4:1)• people with a learning disability

• 1% of children

What is already known?

Page 4: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Autism spectrum conditions

Characterised by difficulty with...• Social communication • Social interaction • Social imagination

Page 5: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

4) A disorder that, although its presentation may change and moderate with age, has a childhood onset and is life-long

• Clinical setting• Developmental history• Involvement of parent

• Self-report screening tool?

Assessment of autism

Page 6: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Adult Household 1993

Institutional Residents 1994

Adult Household 2007

1993 2000 2007

Adult Household 2000

Homeless Persons 1994

Prisoners 1997

Adult Household Follow-up

2002

Children and Adolescent Follow-up

2002

Children and Adolescents 1998

Children and Adolescents 2004

Carers 2001

Looked After Children 2001

The Psychiatric Morbidity Survey Series

Page 7: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

APMS 2007: ASD assessment phases

7,400 phase one interviewsAutism Quotient 20 (AQ20)

630 phase two clinical assessmentsAutism Diagnostic Observation Schedule (ADOS)

60 validation assessments with parents/carersDiagnostic Interview for Social and Communication

Disorders (DISCO)

Page 8: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Phase one AQ20 distribution (7,400 adults)

Page 9: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Probability of selection to phase two, by phase one AQ20 score

0

0.2

0.4

0.6

0.8

1

0 2 4 6 8 10 12 14 16 18 20

AQ score at phase one

Probability of selection to phase two

Page 10: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Phase two ADOS assessments (618)

• 618 ADOS assessments• 19 cases of ASD diagnosed• 5 had an AQ20 score of less than 10• Weighting corrects for sampling and non-response• Estimate 72 cases in phase one sample• 1% prevalence in adults• No association with age

Page 11: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Prevalence of ASD by sex

Page 12: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

ASD by highest educational qualification

Page 13: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

In conclusion...

• Poor screening tool• Few ASD cases diagnosed • Inclusion of people who scored low at phase one • Rates of ASD not increasing• Disadvantaged group

• Communal establishments

Page 14: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Acknowledgements

• NatCen• Susan Purdon, Katharine Sadler, Jenny Harris, Dhriti Jotangia

• University of Leicester• Terry Brugha, Howard Meltzer, Jane Smith

• ARU, Cambridge University • Fiona Scott

• NHS Information Centre for health and social care• Netta Hollings, Vicky Cooper, Andy Sutherland

• DH policy research Unit• Zoltan Bozoky

Page 15: Assessment of autism in a survey of adults Adult Psychiatric Morbidity Survey 2007

Thank you

www.natcen.ac.uk