Changes in adolescents’ and parents’ intakes of sugar-sweetened beverages, fruit and
vegetables after 20 months: results from the HEIA study - a comprehensive, multi-component
school-based randomized trial
Engelsk titel: Changes in adolescents’ and parents’ intakes of sugar-sweetened beverages, fruit and
vegetables after 20 months: results from the HEIA study - a comprehensive, multi-component
school-based randomized trial
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Författare:
Bjelland, Mona
;
Hausken, Solveig E S
;
Bergh, Ingunn H
;
Grydeland, May
;
Klepp, Knut-Inge
;
Andersen, Lene F
;
Totland, Torun H
;
Lien, Nanna
Email: mona.bjelland@medisin.uio.no
Språk: Eng
Antal referenser: 61
Dokumenttyp:
RCT
UI-nummer: 15033535
Sammanfattning
Background: Interventions conducted in school-aged children often involve parents, but few
studies have reported effects on parents’ own behaviour as a result of these interventions.
Objective: To determine if a multi-component, cluster randomized controlled trial targeting 11–13 year
olds influenced their consumption of fruit, vegetables, sugar-sweetened soft drinks and fruit drinks,
and to explore whether the results varied by gender, adolescent weight status or parental educational
level. A final aim was to assess whether the parents’ intakes were affected by the intervention.
Design: Participants were 1,418 adolescents, 849 mothers and 680 fathers. Baseline and post-
intervention data from the 20 months intervention study HEIA (HEalth In Adolescents) were included.
Data were collected assessing frequency (and amounts; beverages only).
Results: No significant differences were found at baseline between the intervention and control
groups, except for the parental groups (educational level and intakes). At post-intervention, the
adolescents in the intervention group consumed fruit more frequently (P<0.001) and had a lower
intake of sugar-sweetened fruit drinks compared to the control group (P=0.02). The parental
educational level moderated the effect on intake of sugar-sweetened fruit drinks in adolescents. The
intake was less frequent in the intervention groups compared to the control groups (P=0.02) for those
who had parents with low and medium educational level. Furthermore, the intervention may have
affected mothers’ fruit intake and the vegetable intake in higher educated fathers.
Conclusion: Favourable effects in favour of the intervention group were found for intake of fruit and
sugar-sweetened fruit drinks among the adolescents in the HEIA study. Our results indicate that it is
possible to reduce adolescents’ intake of sugar-sweetened fruit drinks across parental education,
and potentially affect sub-groups of parents.