TITLE

Effectiveness of a Randomized School-Based Intervention Involving Families and Teachers to Prevent Excessive Weight Gain among Adolescents in Brazil

AUTHOR(S)
Cunha, Diana B.; Souza, Bárbara da S N de; Pereira, Rosangela A.; Sichieri, Rosely
PUB. DATE
February 2013
SOURCE
PLoS ONE;Feb2013, Vol. 8 Issue 2, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objective: To evaluate the effectiveness of a school-based intervention involving the families and teachers that aimed to promote healthy eating habits in adolescents; the ultimate aim of the intervention was to reduce the increase in body mass index (BMI) of the students. Design: Paired cluster randomized school-based trial conducted with a sample of fifth graders. Setting: Twenty classes were randomly assigned into either an intervention group or a control group. Participants: From a total of 574 eligible students, 559 students participated in the study (intervention: 10 classes with 277 participants; control: 10 classes with 282 participants). The mean age of students was 11 years. Intervention: Students attended 9 nutritional education sessions during the 2010 academic year. Parents/guardians and teachers received information on the same subjects. Main Outcome Measurement: Changes in BMI and percentage of body fat. Results: Intention-to-treat analysis showed that changes in BMI were not significantly different between the 2 groups (β = 0.003; p = 0.75). There was a major reduction in the consumption of sugar-sweetened beverages and cookies in the intervention group; students in this group also consumed more fruits. Conclusion: Encouraging the adoption of healthy eating habits promoted important changes in the adolescent diet, but this did not lead to a reduction in BMI gain. Strategies based exclusively on the quality of diet may not reduce weight gain among adolescents. Trial Registration: Clinicaltrials.gov NCT01046474.
ACCESSION #
87625501

 

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