Location: Houston, Texas2011 Annual Report
1a. Objectives (from AD-416)
Objective 1: Determine environmental factors and eating pattern typologies associated with obesity and related diseases in children, adolescents, and young adults using extant datasets. Sub-objective 1.A. Examine the impact of dietary calcium intake and dairy product consumption on weight status in a multi-ethnic, low-income population. Sub-objective 1.B. Determine the impact of breakfast and ready-to-eat cereal (RTEC) on nutrient intake and weight status. Sub-objective 1.C. Determine the impact of snack consumption on nutrient intake and weight status. Sub-objective 1.D. Identify psychosocial factors influencing children’s eating patterns and weight status. Sub-objective 1.E. Evaluate mealtime intake of children as a function of portion size, and evaluate caregiver characteristics related to children's portion sizes.
1b. Approach (from AD-416)
These objectives will be accomplished through secondary data analyses on currently existing datasets. Children's Nutrition Research Center researchers will conduct various analyses in a sequential timeline, resulting in scientific publications and presentations. Scientists will use a multitude of statistical programs (e.g., SAS, SPSS, SUDAAN) to conduct the secondary data analyses. A variety of analytical methods will be used depending on the specific objective (e.g., descriptive statistics; regression analyses; sample-weighted least square means; generalized linear models; and mixed effects models), and adjustments to the analytical methods will be made as appropriate for family support, parental perceptions and concerns about child weight, parental BMI, and child temperament. Additionally we plan to use population-averaged models using generalized estimating equations (GEE) to account for possible clustering effects.
3. Progress Report
In FY2011, we conducted continuous data analysis using data from The National Health and Nutrition Examination Survey administered by the US Center for Disease Control and Prevention. Sophisticated statistical approaches were used to address hypotheses specific to differential serving size selection and food consumption among low-income preschool children. Two manuscripts pertaining to this work are under review in peer-reviewed biomedical journals. The ADODR monitors project activities by visits, review of purchases of equipment, review of ARS-funded foreign travel, and review of ARS funds provided through the SCA.