763 medical scale

The weight and height of children were measured using a Seca 763 Medical Scale and Seca 213 Stadiometer (Hamburg, Germany). Child measurements were used to compute age- and sex-adjusted BMI z-scores using the United States Center for Disease Control and Prevention 2000 growth charts.³¹

Parents reported the time his/her child spent engaging in physical activity (i.e., running around, climbing, biking, dancing, swimming, playing sports, etc.) for an average school day and for an average weekend day or summer day. A weighted response was created to reflect typical minutes of physical activity per day. The parent also reported on his/her child’s age, sex, ethnicity, and race, relationship to the child, marital status, household income, and educational attainment for him/herself and his/her spouse as appropriate. The educational attainment of the mother was used in analyses because most parents enrolled were mothers, and mothers often play a primary role in child feeding.^{28 (link)} The child’s weight (kg) and height (cm) were measured at the study visit using a Seca 763 Medical Scale and Seca 213 Stadiometer (Hamburg, Germany), respectively. All measurements were taken without shoes and in light indoor clothing. Measurements were used to compute age- and sex-adjusted BMI-percentiles using the Center for Disease Control and Prevention 2000 growth charts.²⁹ Overweight or obese was defined as ≥85^th percentile. One participant was classified as underweight per the Centers for Disease Control and Prevention criteria (<5^th BMI-percentile)^{30 (link)} and was excluded from analyses.