A school and community trial for improving 13-year-olds' fruit and vegetable consumption: the Boost study

Conditions

Lifestyle improvement, health promotion, fruit and vegetable consumption Nutritional, Metabolic, Endocrine

Jørgensen TS, Rasmussen M, Jørgensen SE, Ersbøll AK, Pedersen TP, Aarestrup AK, Due P, Krølner R.

2016-11-141 citations

10.1016/j.pmedr.2016.11.009

Parental involvement and association with adolescents' fruit and vegetable intake at follow-up: Process evaluation results from the multi-component school-based Boost intervention.

Jørgensen SE, Jørgensen TS, Aarestrup AK, Due P, Krølner R.

2016-10-2610 citations

10.1186/s12966-016-0435-1

The role of curriculum dose for the promotion of fruit and vegetable intake among adolescents: results from the Boost intervention.

Jørgensen TS, Rasmussen M, Aarestrup AK, Ersbøll AK, Jørgensen SE, Goodman E, Pedersen TP, Due P, Krølner R.

2015-06-059 citations

10.1186/s12889-015-1840-0

Implementation of strategies to increase adolescents’ access to fruit and vegetables at school: process evaluation findings from the Boost study

Anne Kristine Aarestrup, Thea Suldrup Jørgensen, Sanne Ellegaard Jørgensen, Deanna M. Hoelscher, Pernille Due et al. (6 authors)

BMC Public Health2015-02-0521 citations

10.1186/s12889-015-1399-9

A six-step protocol to systematic process evaluation of multicomponent cluster-randomised health promoting interventions illustrated by the Boost study.

Aarestrup AK, Jørgensen TS, Due P, Krølner R.

2014-05-2316 citations

10.1016/j.evalprogplan.2014.05.004

Implementing a free school-based fruit and vegetable programme: barriers and facilitators experienced by pupils, teachers and produce suppliers in the Boost study.

Aarestrup AK, Krølner R, Jørgensen TS, Evans A, Due P, Tjørnhøj-Thomsen T.

2014-02-1115 citations

10.1186/1471-2458-14-146

Interventions

A random sample of 10 municipalities followed by a random sample of 4 schools within each municipality. Randomization into 20 intervention and 20 control schools. Selection of target group, developme

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Pupils attending school year 7 (aged 12 - 14 years) 2. Male and female participants 3. Eligible schools have minimum two school classes at school year level 7

Exclusion criteria

Exclusion criteria: 1. Pupils in school classes with special needs (e.g. dyslexia, psychological and cognitive disabilities) 2. Less than four municipal schools 3. Special needs schools and private schools

Design outcomes

Primary

Measure	Time frame
1. Change in total fruit, vegetable and fruit & vegetable consumption in grams per day (in school + outside school) at 1st and 2nd follow-up versus baseline and between groups 1.1. The validated Pro Children 24-hour recall questionnaire (pupils' self-reported FV intake on the day prior to the data collection) 1.2. Pre-specified success indicator: We aimed at a 20% increase in FV intake at intervention schools compared to control schools at 1st follow-up based on the effect size obtained in the Pro Children study 2. Change in habitual intake of fruit, vegetables and fruit & vegetables 2.1 The validated Pro Children Food Frequency Questionnaire 2.2. Pre-specified success indicator: Significantly higher proportion of pupils eating fruit and vegetables daily at intervention schools at 1st and 2nd follow-up versus baseline and between groups	—

Measure

Time frame

1. Change in total fruit, vegetable and fruit & vegetable consumption in grams per day (in school + outside school) at 1st and 2nd follow-up versus baseline and between groups 1.1. The validated Pro Children 24-hour recall questionnaire (pupils' self-reported FV intake on the day prior to the data collection) 1.2. Pre-specified success indicator: We aimed at a 20% increase in FV intake at intervention schools compared to control schools at 1st follow-up based on the effect size obtained in the Pro Children study 2. Change in habitual intake of fruit, vegetables and fruit & vegetables 2.1 The validated Pro Children Food Frequency Questionnaire 2.2. Pre-specified success indicator: Significantly higher proportion of pupils eating fruit and vegetables daily at intervention schools at 1st and 2nd follow-up versus baseline and between groups

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Secondary

Measure	Time frame
The Boost intervention is designed to create significant positive changes (at 1st versus baseline and between groups) in the following determinants of children's fruit and vegetable consumption identified from systematic literature reviews (Rasmussen 2006, Krølner 2011): 1. Environmental determinants: 1.1 Home availability/accessibility: quantity, variety, quality, convenience, visibility, appearance, parental facilitation (Pro Children and Boost items) 1.2 FV availability/accessibility in schools: quantity, variety, quality, convenience, visibility, appearance (Pro Children and Boost items) 1.3 FV availability in sport clubs and youth clubs: quantity, variety, quality, convenience, visibility, appearance (Pro Children and Boost items) 2. Social determinants: 2.1. Parental intake of FV (Pro Children item) 2.2. Parental knowledge of national fruit and vegetable recommendations (Pro Children item) 2.3. Parental attitude to the importance of children eating fruit and vegetables (Pro Children item) 2.4. Parental modelling (Pro Children item) 2.5. Parental barriers e.g. price, time issues (Adapted from CHAMP item) 2.6. Teachers' attitude to the importance of promoting children's FV intake in schools (Boost item) Teacher modelling (Boost item) 2.7. Sports coaches' attitude to the importance of promoting children's FV intake in sports clubs (Boost item) 2.8. Sports coach modelling (Boost item) 2.9. Situational norms: number of meals, situations, occasions and settings perceived as appropriate for eating fruit and vegetables (Boost items) 2.10 Social peer norms for eating FV in school and leisure time activities (Boost items) 3. Personal determinants: 3.1. Children's knowledge of national fruit and vegetable recommendations (Pro Children item) 3.2. Children's awareness about whether they meet national fruit and vegetable recommendations (Pro Children item) 3.3. Children's taste preferences: number of fruit and vegetables liked (Pro Children item) 3.4. Short term outcome	—

Measure

Time frame

The Boost intervention is designed to create significant positive changes (at 1st versus baseline and between groups) in the following determinants of children's fruit and vegetable consumption identified from systematic literature reviews (Rasmussen 2006, Krølner 2011): 1. Environmental determinants: 1.1 Home availability/accessibility: quantity, variety, quality, convenience, visibility, appearance, parental facilitation (Pro Children and Boost items) 1.2 FV availability/accessibility in schools: quantity, variety, quality, convenience, visibility, appearance (Pro Children and Boost items) 1.3 FV availability in sport clubs and youth clubs: quantity, variety, quality, convenience, visibility, appearance (Pro Children and Boost items) 2. Social determinants: 2.1. Parental intake of FV (Pro Children item) 2.2. Parental knowledge of national fruit and vegetable recommendations (Pro Children item) 2.3. Parental attitude to the importance of children eating fruit and vegetables (Pro Children item) 2.4. Parental modelling (Pro Children item) 2.5. Parental barriers e.g. price, time issues (Adapted from CHAMP item) 2.6. Teachers' attitude to the importance of promoting children's FV intake in schools (Boost item) Teacher modelling (Boost item) 2.7. Sports coaches' attitude to the importance of promoting children's FV intake in sports clubs (Boost item) 2.8. Sports coach modelling (Boost item) 2.9. Situational norms: number of meals, situations, occasions and settings perceived as appropriate for eating fruit and vegetables (Boost items) 2.10 Social peer norms for eating FV in school and leisure time activities (Boost items) 3. Personal determinants: 3.1. Children's knowledge of national fruit and vegetable recommendations (Pro Children item) 3.2. Children's awareness about whether they meet national fruit and vegetable recommendations (Pro Children item) 3.3. Children's taste preferences: number of fruit and vegetables liked (Pro Children item) 3.4. Short term outcome

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Countries

Denmark

Outcome results

None listed