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Prevention of Excessive Weight Gain by Discouraging Students From Drinking Sodas

Not Applicable
Completed
Conditions
Overweight
Children
Interventions
Behavioral: Lifestyle modification
Registration Number
NCT02653352
Lead Sponsor
Rio de Janeiro State University
Brief Summary

The purpose of this study was to encourage students to reduce soft drinks intake, substituting it by water, in order to prevent and control overweight prevalence.

Detailed Description

During seven months of one school year, a healthy lifestyle education programme was implemented using simple messages encouraging water consumption instead of sugar sweetened carbonated beverages. The messages were previously tested for understanding in two small groups of children of the same age and socio-economic background as the study participants. Also, beliefs and behaviors of children in these focus groups were recorded in order to orient activities and the production of printed materials to be given to participants. Education was delivered via classroom activities; banners were hung promoting water consumption, and water bottles with the logo of the campaign were given to children and schoolteachers.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
1140
Inclusion Criteria
  • 4th grade morning classes
Exclusion Criteria
  • Pregnancy
  • Physical disabilities preventing anthropometric measurement

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Lifestyle modificationLifestyle modificationIntervention was focused on the reduction in consumption of sugar-sweetened carbonated beverages by students. During seven months of one school year, a healthy lifestyle education programme was implemented using simple messages encouraging water consumption instead of sugar-sweetened carbonated beverages. Education was delivered via classroom activities; banners were hung promoting water consumption, and water bottles with the logo of the campaign were given to children and schoolteachers.
Primary Outcome Measures
NameTimeMethod
Change in body mass index (kg/m²)baseline, 8 months

We have calculated changes in body mass index (BMI in follow-up minus BMI on baseline) and compared mean changes between control and intervention groups, in order to address differences in BMI gain among groups.

Secondary Outcome Measures
NameTimeMethod
Change in blood glucosebaseline, 8 months
Change in overweight prevalence as assessed by percentage of overweight participantsbaseline, 8 months

Prevalence of overweight was assessed in both groups (intervention and control) in baseline and at the end of follow-up, according to standard definition proposed by Cole et al., 2000. Then, we evaluated changes in prevalences among groups.

Change in blood cholesterolbaseline, 8 months
Change in obesity prevalence as assessed by percentage of obese participantsbaseline, 8 months

Prevalence of obesity was assessed in both groups (intervention and control) in baseline and at the end of follow-up, according to standard definition proposed by Cole et al., 2000. Then, we evaluated changes in prevalences among groups.

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