ISRCTN ISRCTN11265280
DOI https://doi.org/10.1186/ISRCTN11265280
Secondary identifying numbers id: 2018-899/10-0068
Submission date
01/06/2018
Registration date
20/11/2018
Last edited
29/11/2022
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

Background and study aims
Healthy eating habits are important to reduce the risk of certain lifestyle diseases. It is also well established that people with shorter education live unhealthier lifestyles than their counterparts with longer educations. One population group that belongs to people with short education is vocational students. Besides the risks they take in relation to their lifestyle, vocational students are more likely to drop out of school compared to their peers in gymnasiums. One eating habit that could change for the better is breakfast. Suited places for serving breakfast to these young people are vocational schools where students are naturally gathered. This study has three aims. The first is to assess whether wholegrain breakfast could change certain eating habits of vocational students. The second aim is to assess whether wholegrain breakfast has an effect on students’ concentration ability as a prerequisite for learning. The third aim is to find out to what extent the breakfast experiment is feasible, assessed through students’, teachers’ and managements’ perspectives on facilitators and barriers.

Who can participate?
Students aged 16 years or over at four Danish vocational schools.

What does the study involve?
Participating schools are randomly allocated to one of two groups. Two of the schools serve breakfast and the other two schools do not serve breakfast. The schools serve wholegrain breakfast as an integrated part of the first lesson of each school day for four months from March 2012. The breakfast consists of wholegrain cereals with milk and sugar. Besides this, one of the schools also serves wholegrain bread with toppings each Friday. The breakfast is free for students and is served as a buffet. Measurements are conducted three times in total. The first measurement is before the schools begin serving breakfast. The second measurement is in the middle of the experiment and the last measurement is at the end of the experiment. In each measurement students fill out a questionnaire about their breakfast and morning eating habits. It also covers other issues, like their attitude towards breakfast served at the school. Besides the questionnaire, students also take a test that assesses their ability to concentrate. It is voluntary for students to participate in measurements, as it is to eat the breakfast served. However, presence in the breakfast club is mandatory because it was a part of their school day. In order to assess facilitators and barriers of the breakfast club in schools, interviews with students, teachers and management are also conducted.

What are the possible benefits and risks of participating?
By participating in the breakfast club experiment, schools have an opportunity to encourage their students to eat wholegrain breakfast. Besides, the meal likely created a positive atmosphere where students and teachers could interact and talk about everyday issues but also course related questions in an informal manner. This might help towards a constructive atmosphere in class. Possible disadvantages for the schools include expenses for example relating to breakfast and cleaning. Besides that participation took time from lessons each day and during measurements. The Danish Whole grain Partnership granted all wholegrain breakfast products, whereas schools provided all other breakfast products.

Where is the study run from?
Four Danish vocational schools

When is the study starting and how long is it expected to run for?
March 2011 to June 2012

Who is funding the study?
1. Aalborg University
2. Danish Cancer Society
3. Danish Veterinary and Food Administration

Who is the main contact?
1. Mrs Camilla Berg Christensen
2. Prof. Bent Egberg Mikkelsen

Contact information

Mrs Camilla Berg Christensen
Public

Hastrupvej 1582
Qaqortoq
3920
Greenland

Prof Bent Egberg Mikkelsen
Scientific

A.C. Meyers Vænge 15. Bygning: A
København SV
2450
Denmark

ORCiD logoORCID ID 0000-0002-8700-6899
Phone +45 (0)99402556
Email bemi@learning.aau.dk

Study information

Study designMulticentre cluster randomised trial
Primary study designInterventional
Secondary study designCluster randomised trial
Study setting(s)School
Study typeOther
Participant information sheet Vocational schools were invited to participate through written material about the study, which included information about the study. If school management responded positive, a meeting between management, researchers and possible teachers was arranged to further explain and discuss the conditions of the study. Three measurements were conducted during the intervention period; each time students were informed both orally and in writing (participation information sheet) about the purpose of the study, that participation was voluntary and that their information would be treated confidentially. Not available in web format, please use contact details to request a participant information sheet.
Scientific titleThe breakfast club: a quasi-experimental study in vocational schools
Study objectivesThe study had three main research questions. The first was whether the provision of wholegrain breakfast could affect selected eating habits among students. The second assessed the effect of wholegrain breakfast on concentration and sustained attention among students. The final research question regarded the feasibility and asked if the breakfast club intervention was feasible assessed through facilitators and barriers in the experience of students, teachers and management.
Ethics approval(s)Aalborg University Contract Unit, 27/02/2018, id: 2018-899/10-0068
Health condition(s) or problem(s) studiedHealthy young people in vocational schools
InterventionParticipants were randomised into either control or intervention at the school level. The intervention lasted for approximately four months (2012).

The intervention consisted of free breakfast: wholegrain cereals with milk and sugar. One school served wholegrain bread with toppings on Fridays. The breakfast session occurred during first lesson every school day for approximately four months. The breakfast was served as a buffet and eating was voluntary.

Control schools proceeded as normal but constraining from serving free breakfast to their students or having other ongoing similar health promotion projects.
Intervention typeOther
Primary outcome measure1. Eating habits measured by consumption of selected breakfast items. The items included wholegrain products and other items that were considered normal breakfast in the particular population group. Both frequency and quality of breakfast intake were assessed. Measurement instrument was a food frequency questionnaire. Measured at week 0, 7 and 8 weeks after baseline, and 14 to 16 weeks after baseline.
2. Students attention and concentration measured by a concentration test called "the d2 test of attention" at week 0, 7 and 8 weeks after baseline, and 14 to 16 weeks after baseline.
3. Barriers and facilitators were established by interviews with stakeholders i.e. students, teachers and management. Interviews with participants at the two intervention schools were conducted at the end and after the intervention period.
Secondary outcome measuresThe amount of students eating during the breakfast club was counted through observations performed at both intervention schools at approximately 7 and 8 weeks after baseline and the end of the intervention period approximately 14 to 16 weeks after baseline
Overall study start date01/03/2011
Completion date22/06/2012

Eligibility

Participant type(s)Healthy volunteer
Age groupOther
SexBoth
Target number of participantsThe study encompassed 318 students in total. They belonged in two clusters with two schools in each.
Total final enrolment318
Key inclusion criteriaSchools:
1. Within a restricted geographical range due to time constraints
2. Ability and willing to pay certain expenses connected to the breakfast club intervention e.g. sugar, milk, toppings and extra cleaning
3. Willingness to participate as control school depending on the randomisation
4. Prepared to serve wholegrain breakfast as an integrated part of the school day

Students:
1. Both genders
2. Age ≥ 15 (participants were all aged 16 years or older)
3. Vocational student attending their first basic part of their education, which is situated in the school setting (Danish vocational training and education is divided into two main parts, the first period takes place at the school and the second part consist of a apprenticeship often in companies)
4. Attending courses considered primarily masculine with a high drop-out rate: auto mechanics and electricians*
*This criterion was not eligible and was changed to also include other courses
Key exclusion criteriaSchools were excluded if:
1. They had ongoing health promotion activities including eating projects
2. They lacked kitchen facilities to store the breakfast products
3. They only had students attending food related courses
Date of first enrolment01/05/2011
Date of final enrolment01/02/2012

Locations

Countries of recruitment

  • Denmark

Study participating centres

EUC Lillebælt
Fredericia
7000
Denmark
TEC Ballerup
Ballerup
2750
Denmark
TEC Frederiksberg
Frederiksberg
2000
Denmark
Mercantec
Viborg
8800
Denmark

Sponsor information

Aalborg University Copenhagen
University/education

A. C. Meyers Vænge 15
Copenhagen SV
2450
Denmark

Phone +45 (0)9940 3770
Email aau@aau.dk
ROR logo "ROR" https://ror.org/04m5j1k67

Funders

Funder type

University/education

Aalborg Universitet
Private sector organisation / Universities (academic only)
Alternative name(s)
Aalborg University, AAU
Location
Denmark
Kræftens Bekæmpelse
Government organisation / Associations and societies (private and public)
Alternative name(s)
Danish Cancer Society, The Danish Cancer Society, DCS
Location
Denmark
Danish Whole Grain Partnership

No information available

Danish Veterinary and Food Administration

No information available

Results and Publications

Intention to publish date31/12/2018
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination plan1. An article about the breakfast club intervention’s possible effects on students eating habits (first research question) is under revision in the BMC Public Health Journal. Publication date probably late 2018 or early 2019
2. An extended abstract about whether breakfast, provided in a breakfast club intervention, can affect students’ ability to concentrate and pay attention was published in proceedings of ICCAS (International Conference on Culinary Arts & Sciences) 2017.
3. Publication of an article about the feasibility of the breakfast club intervention is planned to be submitted to a journal in 2018 or early 2019.
4. PhD dissertation will be submitted late 2018.The thesis will be available from 2019 from Aalborg University Press.
5. Publication of other documents is not planned.
IPD sharing planPlease contact camillabergchrstensen@gmail.com and/or bemi@learning.aau.dk for access to the datasets. The datasets consist of questionnaires including food frequency questions and selected answers from the d2 test of sustained attention. Besides interviews will be available upon request. The data will be available when the manuscript is published. Access criteria: a description of purpose and intended analysis. Content from participants was received through answering the questionnaire and the intervention conformed with the regulations on nonclinical trials by the National Committee on Health Research Ethics in Denmark. Participants' names were initially recorded and masked into anonymisation during data processing.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 03/04/2019 05/04/2019 Yes No

Editorial Notes

29/11/2022: Total final enrolment added.
05/04/2019: Publication reference added.