Reducing Sugar-sweetened Beverage Consumption in Overweight Adolescents
- Conditions
- OverweightObesity
- Interventions
- Behavioral: Reduction of sugar-sweetened beverage consumption
- Registration Number
- NCT00381160
- Lead Sponsor
- Boston Children's Hospital
- Brief Summary
The primary aim of this study is to examine the effect of a multi-component intervention, designed to reduce consumption of sugar-sweetened beverages, on weight gain, total energy intake, and diet quality in adolescents. The secondary aim is to evaluate whether outcomes of the intervention differ between adolescents for whom 100% fruit juice vs. other products (i.e., soda, fruit punch, lemonade, iced tea, coffee drinks, energy drinks, sports drinks) constitutes the primary source of sugar from beverages.
- Detailed Description
We are partnering with community organizations (including high schools) in the greater Boston area and a major regional supermarket. Participants will be 240 high school students who drink at least 1 serving of sugar-sweetened beverage (including 100% fruit juices) per day and who have a BMI ≥ 85th percentile. They will be randomly assigned to an intervention or control group. The intervention, of 1-year duration, will target the home/family environment in combination with a behavioral intervention provided during brief check-in visits. The environment will be changed by delivering non-caloric beverages to the homes of adolescents who regularly consume sugar-sweetened beverages. Parents will be counseled by telephone to serve as role models in consuming non-caloric beverages. The behavioral intervention for the adolescents will include didactic and experiential components during the check-in visits. Study outcomes will be assessed at baseline, 1 year (end of intervention period), and 2 years (end of follow-up period).
Additional relevant material based on the original proposal (NIH grant application) is provided below:
Each outcome will be compared between groups using a general linear model, adjusted for baseline covariates that could affect body weight: sex, race, ethnicity (Hispanic vs non-Hispanic), household income, parents' education, BMI, beverage consumption (sugar-sweetened, artificially sweetened, unsweetened), energy intake (total, sugar-sweetened beverages, fruit juice), physical activity level, and daily television viewing. Each covariate will be tested for confounding, mediation, and interaction effects on the primary outcome. Stratum-specific estimates of the group difference will be constructed for any covariates showing significant interaction.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 224
- Enrolled in grade 9 or 10
- BMI ≥ 85th percentile for age and gender
- Residing in predominately one household, with access to a working telephone
- Consumption of 12 fluid ounces sugar-sweetened beverages (including 100% fruit juices) per day
- Sibling participating in the study
- Intention to change location of residence during the 2 years post-randomization
- Plans to be away from home for 5 weeks or longer during the study period
- Physician diagnosis of a major medical illness or eating disorder
- Chronic use of any medication that may affect body weight or composition
- Current smoking
- Physical, mental, or cognitive handicaps that prevent participation
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description 1 Reduction of sugar-sweetened beverage consumption Provision of non-caloric beverages to home
- Primary Outcome Measures
Name Time Method Body mass index (BMI) Change through 2 years
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Children's Hospital
🇺🇸Boston, Massachusetts, United States