This study is evaluating the implementation and impact of these taxes on sugar-sweetened beverages in Philadelphia and two other cities to be determined.
Over the past three decades, childhood obesity has been on the rise. We evaluate obesity prevention efforts in schools, communities, and programs such as Head Start. We also study the link between childhood obesity and children's diets, including foods consumed in school. In particular, we have studied competitive foods—items of minimal nutritional quality sold in schools that compete with school meals and contribute to children’s calorie intakes. Our staff has also assessed the food intake patterns of infants and toddlers, and investigated the trend toward larger portion sizes in restaurant and packaged foods.
Do Taxes on Sugar-Sweetened Beverages Help Reduce Child Obesity? A Look at Three Cities
Measure Registry for the National Collaborative on Childhood Obesity Research (NCCOR)
We built a database to support the initial version of the registry, which focused on measures in (1) physical activity environments and policies, (2) food environments and policies, (3) individual dietary behaviors, and (4) individual physical activity behaviors (including sedentary behaviors).
Evaluation of the Harlem Children's Zone Healthy Harlem Initiative
The Healthy Harlem initiative is a model for promoting healthy lifestyles in the charter schools, early childhood programs, and afterschool programs operated by the Harlem Children’s Zone® (HCZ). Mathematica's evaluation includes both an implementation/process study and an impact study.
School Nutrition and Meal Cost Study (SNMCS)
The School Nutrition and Meal Cost Study provides data on a broad array of topics, including critical information about the food and nutrient content of school meals, the costs of school meals, the food environments in schools, and the contribution of school meals to children's overall diets.
Evaluation of Model Communities: Healthy Weight Collaborative
Mathematica conducted a formative evaluation of the implementation and early outcomes of the Healthy Weight Collaborative, using a an integrated mixed methods approach.
Playworks: Student and School Outcomes
Full-time coaches in low-income schools provide opportunities for organized play during recess and throughout the school day. Activities engage students in physical activity, foster social skills, improve ability to focus on class work, decrease behavioral problems, and improve school climate.