VETisnietVET.nl: The impact of a web-based interactive computer tailored intervention on weight gain related behaviours in youth

ISRCTN	ISRCTN15743786
DOI	https://doi.org/10.1186/ISRCTN15743786
Protocol serial number	ZonMw: 3138
Sponsor	Erasmus Medical Centre (The Netherlands)
Funder	The Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands)

Submission date: 11/04/2007
Registration date: 11/04/2007
Last edited: 24/08/2012

Recruitment status: No longer recruiting
Overall study status: Completed
Condition category: Nutritional, Metabolic, Endocrine

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Ms Nicole Ezendam
Scientific

Erasmus Medical Centre
Department of Public Health
Room AE-139
P.O. Box 2040
Rotterdam
3000 CA
Netherlands

Phone	+31 (0)10 408 9253
Email	n.ezendam@erasmusmc.nl

Study information

Primary study design	Interventional
Study design	Randomised, controlled, parallel group trial
Secondary study design	Randomised controlled trial
Study type	Participant information sheet
Scientific title
Study objectives	1. The intervention group will have a lower Body Mass Index (BMI)/waist circumference, compared to the control group at follow-up 2. The intervention group will have more favourable outcomes on the targeted behaviours, compared to the control group at follow-up 3. The intervention group will be more aware of their risk behaviours and have more positive attitudes, perceived behavioural control and intentions to change for their risk behaviours, compared to the control group at follow-up 4. Availability and accessibility of foods and physical activity opportunities moderates the intervention effects In addition to testing these main hypotheses, secondary analysis will be performed to answer other relevant research questions.
Ethics approval(s)	Approval received from the local medical ethics committee (Medisch Ethische Toetsings Commissie Erasmus MC [METC]) on the 7th June 2006 (ref: MEC-2005-364).
Health condition(s) or problem(s) studied	No condition, healthy person
Intervention	Intervention group: The pupils in the intervention schools will use a computer-tailored intervention on weight gain related behaviours (physical activity, sedentary behaviour, snack, fruit and vegetable, fibre and soft-drink consumption) during their first year of secondary school. The intervention will be used during school hours as part of the education program. The intervention will be used for an average of two hours (preferably divided by eight times 15 minutes) within ten subsequent weeks. Control group: The control group will receive regular school lessons. After two years the intervention will be available for the control group as well.
Intervention type	Other
Primary outcome measure(s)	1. BMI calculated from measured height and weight, at baseline and two year follow-up 2. Waist circumference measured between hip bone and lowest rib, at baseline and two year follow-up
Key secondary outcome measure(s)	1. Physical activity measured with self-report questionnaires plus pedometer counts (for part of the participants) at baseline, three months and two year follow-up 2. Physical condition measured with a shuttle-run-test at baseline and two year follow-up 3. Various dietary sub-behaviours, i.e. fruit and vegetable consumption, soft-drink consumption, snack consumption and fibre consumption measured with self-report questionnaires at baseline, three months and two year follow-up 4. Amount of television viewing/time spend with the computer measured with self-report questionnaires at baseline, three month and two year follow-up 5. Awareness of personal bodyweight status, overweight-related risk perceptions, weight maintenance attitudes, perceived behavioural control, and motivation to engage in weight maintenance behaviours, measured with self-report questionnaires at baseline, three months and two year follow-up 6. Determinants of change for the separate dietary, physical activity and sedentary behaviours, as measured by self-report questionnaires, distributed at baseline, three months and two year follow-up
Completion date	30/06/2009

Eligibility

Participant type(s)	Patient
Age group	Child
Sex	Not Specified
Target sample size at registration	1200
Key inclusion criteria	Secondary schools (locations) in the municipal health organisation regions: Rotterdam and surrounding areas and Nieuwe Waterweg Noord.
Key exclusion criteria	1. Schools (locations) where pupils have very low reading capacity (i.e. pupils that are not able to fill in a questionnaire) 2. Schools (locations) that offer special sports education (i.e. special sports schools) 3. Schools (locations) where the pupils could not be followed-up to the third year, i.e. schools that only provide education for the first two years of secondary education (onderbouw) and where the pupils could not be tracked to other
Date of first enrolment	01/06/2006
Date of final enrolment	30/06/2009

Locations

Countries of recruitment

Netherlands

Study participating centre

Erasmus Medical Centre

Rotterdam
3000 CA
Netherlands

Results and Publications

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Study outputs

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Results article	results	01/03/2012		Yes	No
Protocol article	study protocol	12/11/2007		Yes	No
Other publications	evaluation	01/03/2013		Yes	No
Participant information sheet	Participant information sheet	11/11/2025	11/11/2025	No	Yes