In children and youth, BMI is based on growth charts for age and gender and is referred to as BMI-for-age which is used to assess under-weight, overweight, and risk for overweight. According to the Centers for Disease Control and Prevention (CDC), a child with a BMI-for-age that is equal to or greater than the 95th percentile is considered to be overweight. A child with a BMI-for-age that is equal to or between the 85th and 95th percentile is considered to be at risk of being overweight. In this report, the definition of obesity is equivalent to the CDC definition of overweight.

Built environment The man-made elements of the physical environment; buildings, infrastructure, and other physical elements created or modified by people and the functional use, arrangement in space, and aesthetic qualities of these elements.

Calorie A kilocalorie is defined as the amount of heat required to change the temperature of one gram of water from 14.5 degrees Celsius to 15.5 degrees Celsius. In this report, calorie is used synonymously with kilocalorie as a unit of measure for energy obtained from food and beverages.

Community A social entity that can be spatially based on where people live in local neighborhoods, residential districts, or municipalities, or relational such as people who have common ethnic or cultural characteristics or share similar interests.

Co-morbidity In relation to obesity, an associated condition such as hypertension, type 2 diabetes, or asthma that worsens with weight gain and improves with weight loss.

Competitive foods Foods and beverages offered at schools other than meals and snacks served through the federally reimbursed school lunch, breakfast and after-school snack programs. Competitive foods includes food and beverages items sold through à la carte lines, snack bars, student stores, vending machines, and school fundraisers.

Dietary Guidelines for Americans A federal summary of the latest dietary guidance for the public based on current scientific evidence and medical knowledge, issued by the U.S. Department of Health and Human Services and U.S. Department of Agriculture, and is revised every 5 years.

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