Mothers
International Journal of Behavioral
Nutrition and Physical Activity
BioMed Central
Research
Open Access
Mothers' involvement in a school-based fruit and vegetable
promotion intervention is associated with increased fruit and
vegetable intakes – The Pro Children study
Saskia J Te Velde*1, Marianne Wind2, Carmen Perez-Rodrigo3, KnutInge Klepp4 and Johannes Brug5,6
Address: 1EMGO institute, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands, 2Department of
Nutrition, Faculty of Medicine, University of Oslo, PO Box 1046, Blindern, 0316 Oslo, Norway, 3Community Nutrition Unit, Department of
Public Health, Luis Briñas 18; 4 Planta E 48013 Bilbao, Spain, 4Department of Nutrition, Faculty of Medicine, University of Oslo, PO Box 1046,
Blindern, 0316 Oslo, Norway, 5Brug J, EMGO institute, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The
Netherlands and 6Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands
Email: Saskia J Te Velde* - ; Marianne Wind - ; Carmen PerezRodrigo - ; Knut-Inge Klepp - ; Johannes Brug -
* Corresponding author
Published: 15 October 2008
International Journal of Behavioral Nutrition and Physical Activity 2008, 5:48
doi:10.1186/1479-5868-5-48
Received: 24 December 2007
Accepted: 15 October 2008
This article is available from: http://www.ijbnpa.org/content/5/1/48
© 2008 Te Velde et al; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0),
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Background: Several school-based fruit and vegetable interventions include activities to involve
parents, but not much is know about the effectiveness of such a family component on child and
parent intake levels. The current study evaluated the effects of the multi-component school-based
intervention, 'the Pro Children Study', on mothers' intake levels. Furthermore, associations
between level of involvement in the project and improvement in the mothers' intake levels were
assessed.
Methods: Effect was evaluated in a cluster randomized controlled trial in Spain, Norway and the
Netherlands among mothers of 11-year-olds. Of the 1253 mothers with complete data at baseline,
754 and 476 had complete data at first and second follow-up respectively. Fruit and vegetable
intake, level of involvement and demographic variables were assessed by a parental questionnaire.
Data was analyzed using multilevel regression analyses.
Results: Results showed no effect of the intervention on mothers' fruit and vegetable intake after
one year and two year follow-up. Participation rate for the different activities varied by activity and
by country, e.g. 3.7–9.4% visited the website, while 26.4–72.6% of the mothers participated in the
home work assignments. Results further showed that higher involvement levels were associated
with higher intake at follow-up.
Conclusion: The Pro Children Intervention could not increase the fruit and vegetable
consumption of the mothers of participating pupils, which might be explained by the low
involvement in the project. More research is needed to increase mothers' involvement in schoolbased interventions.
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(page number not for citation purposes)
International Journal of Behavioral Nutrition and Physical Activity 2008, 5:48
http://www.ijbnpa.org/content/5/1/48
Background
Methods
A large proportion of the Western populations does not
meet the recommendations for fruit and vegetable intake
[1-3], while epidemiological studies show beneficial
effects of diets high in fruit and vegetables [4-6]. Therefore, several programs have been developed to encourage
fruit and vegetable intake. The Pro Children Intervention
is one example, which was implemented and evaluated in
a cluster randomized controlled trial in three European
countries, namely Norway, Spain and the Netherlands [7],
and which has proven to be successful in increasing fruit
and vegetable intake among 11-year-old schoolchildren
[8].
The intervention
The Pro Children intervention consisted of different components: a classroom component, a school component, a
family component and one optional component, which
differed slightly by intervention site, as described in more
detail elsewhere [8,9].
The Pro Children Intervention was a multi component
intervention consisting of a class room component, a
school component and a family component in which parents were encouraged to participate in various activities
[9]. Since parents were encouraged to be involved in the
project and children were taught skills to ask for fruit and
vegetables at home, the intervention may also have
improved fruit and vegetable intakes of the parents.
Several school-based fruit and vegetable interventions
comprising family components have been described in
the literature [10], however, only one described effects in
intake among parents [11]. The High 5 Intervention
resulted in higher fruit and vegetable consumption in parents in the experimental group compared to the control
group at first follow-up at 12 months, but this effect was
not sustained at second follow-up, one year later. A Social
marketing inspired intervention including newsletters
and parent events (duration 4 weeks) resulted in more frequent serving of fruit and vegetables during dinner and
more frequent serving of fruit as a snack among the parents at post-test, compared to the pre-test [12]. If schoolbased interventions are successful in promoting fruit and
vegetable intake among parents, this will be an additional
positive effect, which might be relevant for policymakers
deciding upon large scale implementation of school
based interventions. Moreover, parents who increase their
own fruit and vegetable intake may also serve as better
role models for their (other) children [13-15]. Such an
effect among parents is most likely if parents are actively
involved in the school-based project.
In the Pro Children intervention study, data is available
on fruit and vegetable intake of the parents of the participating pupils, therefore, the aim of the current study was
to evaluate the effects of a school based intervention on
parents' fruit and vegetable intake after one year and two
year follow-up. A second aim was to assess whether a
potential effect was mediated by the level of involvement
in the project.
The classroom curriculum consisted of school education
materials containing of a set of 16 worksheets with guided
activities and a web-based computer-tailored feedback
tool. These educational classroom activities addressed the
knowledge of recommended intake levels, awareness of
the children's own intake, taste and preferences for different kinds of fruits and vegetables and specific skills to prepare or ask for fruit/vegetables. The school (...truncated)