Condition category
Nutritional, Metabolic, Endocrine
Date applied
30/05/2007
Date assigned
30/05/2007
Last edited
17/03/2014
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

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

http://www.erasmusmc.nl/content/englishindex.htm

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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

Additional files

Editorial Notes