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The effect of ‘the healthy worksite cafeteria’


- candidate number22773
- NTR NumberNTR5372
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR20-aug-2015
- Secondary IDsVU2015-08 Vereniging Nederlandse Cateringorganisaties
- Public TitleThe effect of ‘the healthy worksite cafeteria’
- Scientific TitleThe development and evaluation of a healthy worksite cafeteria intervention in the Netherlands with social marketing techniques and nudging.
- ACRONYM
- hypothesisThe objective of this study is to measure the effect of ‘the healthy worksite cafeteria’ on eating behavior of visitors in Dutch worksite cafeterias.
It is hypothesized that the intervention will result in an increase in sales of fruit and vegetables, products lower in energy, saturated fat and salt in the selected categories; sandwiches, hot snacks, bread toppings and hot meals.
- Healt Condition(s) or Problem(s) studiedPrevention, Overweight
- Inclusion criteriaInclusion criteria for worksite cafeterias are:
• Minimum of 100 lunch customers per day.
• Cash desk system can registrate separate products.
• Cash desks are staffed.
• The worksite cafeteria or the company will not organize active nutritional or health campaigns from January 2016 until August 2016.
• The company gives permission to change the selection of products for 12 weeks during the experiment to an intervention level of ‘medium’*.
• The company gives permission to change the routing in the restaurant for 12 weeks during the experiment to an intervention level of ‘medium’.
• The company gives permission to change the price of products for 12 weeks during the experiment to an intervention level of ‘medium’.
• The company gives permission to change the promotion of products and menu for 12 weeks during the experiment to an intervention level of ‘medium’.
• The company gives permission for measuring sales data during the study, anonymously.
• The company gives permission for conducting a questionnaire within their employees. * The intervention level is explained in 'Intervention'
- Exclusion criteriaExclusion criteria for worksite cafeterias are:
• Not able to fulfill all inclusion criteria.
• Performing all 'medium' intervention strategies prior to baseline.
- mec approval receivedno
- multicenter trialno
- randomisedyes
- masking/blindingNone
- controlNot applicable
- groupParallel
- Type2 or more arms, randomized
- Studytypeintervention
- planned startdate 1-feb-2016
- planned closingdate1-dec-2016
- Target number of participants35
- Interventions'The healthy worksite cafeteria'
A set of about 20 strategies to nudge visitors of worksite cafeterias to a more healthy food choice.
- Primary outcomeSales data of food products in certain product categories: sandwiches, bread topping, (hot) snacks, hot meals, fruit&vegetables
- Secondary outcomeSubjective vitality and satisfaction of visitors of worksite cafeterias
- TimepointsT0 1 month before start intervention
T1 1 month after start intervention
T2 2 months after start intervention
T3 3 months after start intervention
T4 1 month after ending intervention
- Trial web site
- statusopen: patient inclusion
- CONTACT FOR PUBLIC QUERIESMSc Liesbeth Velema
- CONTACT for SCIENTIFIC QUERIESprof. dr Ingrid Steenhuis
- Sponsor/Initiator Vrije Universiteit Amsterdam
- Funding
(Source(s) of Monetary or Material Support)
Vereniging Nederlandse Cateringorganisaties
- Publications
- Brief summaryBackground: Worksites cafeterias are a suitable setting for interventions focusing on changing eating behavior, because a lot of employees visit the worksite cafeteria regularly.
The aim of this paper is to describe the design and the evaluation of an intervention together with social marketing techniques called ‘the healthy worksite cafeteria’, to enhance eating behavior of Dutch employees. The intervention will be executed in a real-life setting, that is Dutch worksite cafeterias of different companies and with different catering organizations. Methods/design: The design is a randomized controlled trial (RCT) with 30 worksite cafeterias randomly assigned to the 12 week intervention group or to the control group. Primary outcomes are sales data of selected products. Secondary outcomes are satisfaction of employees with the cafeteria and subjective vitality.

Discussion: This study will provide evidence regarding the potential contribution of the intervention ‘the healthy worksite cafeteria’ in prevention of overweight of Dutch employees.
- Main changes (audit trail)
- RECORD20-aug-2015 - 26-aug-2015


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