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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
Health Intervention for Adolescents With Intellectual Disability
Scientific title
RCT of an Intervention to Improve the Health of Adolescents With Intellectual Disability
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Vision Impairment 0 0
Hearing Impairment 0 0
Obesity 0 0
Condition category
Condition code
Ear 0 0 0 0
Mental Health 0 0 0 0
Learning disabilities
Mental Health 0 0 0 0
Other mental health disorders

Study type
Description of intervention(s) / exposure
Behaviour - Health Intervention Package

Experimental: School based health intervention - Educational intervention based on health diary + health check

No Intervention: Usual care - Normal school curriculum and usual medical care

Behaviour: Health Intervention Package
CHAP and Ask Diary

Intervention code [1] 0 0
Comparator / control treatment
Control group

Primary outcome [1] 0 0
Level of health promotion
Timepoint [1] 0 0
Short term
Primary outcome [2] 0 0
Disease prevention
Timepoint [2] 0 0
Short term
Primary outcome [3] 0 0
Case finding activities (the identification of new disease)
Timepoint [3] 0 0
Short term
Primary outcome [4] 0 0
Acceptability and usefulness of both the CHAP health review and the ASK Diary
Timepoint [4] 0 0
Long term
Secondary outcome [1] 0 0
Appropriate health interventions
Timepoint [1] 0 0
Short term
Secondary outcome [2] 0 0
Ongoing maintenance of health care
Timepoint [2] 0 0
Long term

Key inclusion criteria
- Intellectual disability

- Aged >= 10 years

- Attend Special School or Units of Special Education in Southern Queensland
Minimum age
10 Years
Maximum age
20 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
- No intellectual disability

- Not aged >= 10 years

- Do not attend Special School or Unit of Special Education in Southern Queensland

Study design
Purpose of the study
Supportive Care
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?

The people assessing the outcomes
Intervention assignment
Other design features
Not Applicable
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Queensland Centre for Intellectual and Developmental Disability, University of Queensland, Mater Hospital - Brisbane
Recruitment postcode(s) [1] 0 0
4101 - Brisbane

Funding & Sponsors
Primary sponsor type
The University of Queensland
Other collaborator category [1] 0 0
Name [1] 0 0
National Health and Medical Research Council, Australia
Address [1] 0 0
Country [1] 0 0

Ethics approval
Ethics application status

Brief summary
People with intellectual disability die five to twenty years earlier than the general
population. They also experience high levels of unrecognised disease and receive inadequate
levels of health promotion or screening. Although they comprise 2.7% of our population (502
000 Australians) they receive scant, if any, attention in the health literature.

The barriers to good health for this population include: communication difficulties, impaired
recall of significant health information, and inadequate training of health service
providers. This project attempts to minimise some of these barriers through the use of a
Health Intervention Package. Use of this package has been evaluated in adults, but not in
adolescents, with intellectual disability.

The Health Intervention Package includes a comprehensive health review, called the
Comprehensive Health Assessment Program (CHAP), which is performed by the adolescent's
general practitioner, and a diary, the Ask diary, used to collect and store health
information and to enhance health advocacy skills. We specifically aim to test if adolescents
with intellectual disability using this package will receive better health screening and
prevention (our primary outcomes). We also aim to test if using the package results in
improved health advocacy by adolescents with intellectual disability and their parents (our
secondary outcomes). The tool should also be acceptable to those involved (another secondary
outcome). To investigate these aims we propose a clustered randomised controlled trial, a
methodology we have used successfully in two previous trials. We will recruit 1000
adolescents (and their carers and teachers) in Special Education Schools and Special
Education Units in Queensland.

The CHAP health review aims to produce shorter-term benefits of improved health
screening/promotion and disease detection, such as increased sensory testing, identification
of vision or hearing impairment, and improved immunisation rates. The Ask diary is intended
to produce longer-term benefits such as improved communication about health matters, improved
health advocacy skills, improved health record keeping, and increased health maintenance.
Trial website
Trial related presentations / publications
Lennox N, Ware R, Carrington S, O'Callaghan M, Williams G, McPherson L, Bain C. Ask: a health advocacy program for adolescents with an intellectual disability: a cluster randomised controlled trial. BMC Public Health. 2012 Sep 7;12:750. doi: 10.1186/1471-2458-12-750.
Public notes

Principal investigator
Name 0 0
Nicholas G Lennox, MBBS
Address 0 0
The University of Queensland
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications