Contact information
Type
Scientific
Primary contact
Ms S.J.W. Robroek
ORCID ID
Contact details
Erasmus Medical Centre
Department of Public Health
P.O. Box 2040
Rotterdam
3000 CA
Netherlands
+31 (0)10 4087721
s.robroek@erasmusmc.nl
Additional identifiers
EudraCT number
ClinicalTrials.gov number
Protocol/serial number
ZonMw: 6230039
Study information
Scientific title
Acronym
Study hypothesis
It is hypothesised that long-term electronic communication through the web and e-mails (the Health Portal) provides an efficient means of increasing exposure to advice on healthy behaviour and to facilitate adherence and sustainability.
Ethics approval
Approval received from the Medical Ethical Committee of the Erasmus Medical Center on 23rd July 2007 (ref: MEC-2007-113).
Study design
Randomised, single blinded, active controlled, parallel group trial
Primary study design
Interventional
Secondary study design
Randomised controlled trial
Trial setting
Not specified
Trial type
Quality of life
Patient information sheet
Condition
Nutrition, health promotion, physical activity, worksite
Intervention
1. Usual care control group:
Standard worksite health promotion program consisting of a questionnaire, a health check with a biometric assessment and access to a restricted part of the Health Portal on the Internet containing personal results on the questionnaire and health check and general information on health.
2. Intervention group:
On top of the standard worksite health promotion program the intervention group will have access to the personalised Health Portal on the Internet, which is built on four critical features:
2.1. Computer-tailored advice on physical activity and nutrition
2.2. Reports on individual progress in self-reported weight, body mass index, physical activity and fruit and vegetable consumption
2.3. Opportunity to contact professionals through e-mail
2.4. Continuous support and feedback through e-mail by a personal coach
After 12 months the monthly contact by a personal coach will be terminated, but access to the Health Portal will remain for another 12 months.
Data will be collected by means of a questionnaire at baseline, and after 12 and 24 months and a health check at baseline and after 24 months.
Intervention type
Other
Phase
Not Specified
Drug names
Primary outcome measures
1. Change in (moderate and vigorous) physical activity level using the International Physical Activity Questionnaire, measured at baseline and after 12 and 24 months
2. Change in level of fruit and vegetable intake using the short Dutch Food Frequency Questionnaire, measured at baseline and after 12 and 24 months
Secondary outcome measures
1. Self-efficacy and perceived barriers on physical activity and fruit and vegetable consumption, measured at baseline and after 12 and 24 months
2. Change in self-reported saturated fat intake, measured at baseline and after 12 and 24 months
3. By using the SCORE system a risk profile on cardiovascular disease, consisting of systolic blood pressure, gender, smoking and total cholesterol level will be assessed, measured only at baseline and after 24 months
4. Body mass index, waist circumference and body fat percentage, measured only at baseline and after 24 months
5. Endurance, measured only at baseline and after 24 months
Overall trial start date
01/03/2007
Overall trial end date
28/02/2011
Reason abandoned
Eligibility
Participant inclusion criteria
Eligibility criteria for individual workers are:
1. Paid employment
2. Working at least 12 hours a week
3. Being literate enough to read and understand simple e-mail and internet-based messages in the Dutch language
Participant type
Patient
Age group
Not Specified
Gender
Not Specified
Target number of participants
1400
Participant exclusion criteria
Exclusion criteria for individual workers are:
1. Insufficient Dutch language skills
2. Working less than 12 hours a week
Recruitment start date
01/03/2007
Recruitment end date
28/02/2011
Locations
Countries of recruitment
Netherlands
Trial participating centre
Erasmus Medical Centre
Rotterdam
3000 CA
Netherlands
Sponsor information
Organisation
Erasmus Medical Centre (The Netherlands)
Sponsor details
Department of Public Health
P.O. Box 2040
Rotterdam
3000 CA
Netherlands
Sponsor type
Hospital/treatment centre
Website
Funders
Funder type
Research organisation
Funder name
The Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands)
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Results - basic reporting
Publication summary
2010 results in: http://www.ncbi.nlm.nih.gov/pubmed/20921001
2012 results in: http://www.ncbi.nlm.nih.gov/pubmed/22390886
2012 results in: http://www.ncbi.nlm.nih.gov/pubmed/22350194
2013 results in: http://www.ncbi.nlm.nih.gov/pubmed/22772397
Publication citations
-
Results
Robroek SJ, Brouwer W, Lindeboom D, Oenema A, Burdorf A, Demographic, behavioral, and psychosocial correlates of using the website component of a worksite physical activity and healthy nutrition promotion program: a longitudinal study., J. Med. Internet Res., 2010, 12, 3, e44, doi: 10.2196/jmir.1402.
-
Results
Robroek SJ, Lindeboom DE, Burdorf A, Initial and sustained participation in an internet-delivered long-term worksite health promotion program on physical activity and nutrition., J. Med. Internet Res., 2012, 14, 2, e43, doi: 10.2196/jmir.1788.
-
Results
Robroek SJ, Polinder S, Bredt FJ, Burdorf A, Cost-effectiveness of a long-term Internet-delivered worksite health promotion programme on physical activity and nutrition: a cluster randomized controlled trial., Health Educ Res, 2012, 27, 3, 399-410, doi: 10.1093/her/cys015.
-
Results
Robroek SJ, van Lenthe FJ, Burdorf A, The role of lifestyle, health, and work in educational inequalities in sick leave and productivity loss at work., Int Arch Occup Environ Health, 2013, 86, 6, 619-627, doi: 10.1007/s00420-012-0793-1.