2013 Annual Report
1a.Objectives (from AD-416):
An objective of the Delta Obesity Prevention Research Unit (Delta OPRU) being conducted in part under this cooperative agreement is to identify barriers and facilitators to adherence to the Dietary Guidelines for Americans (DG) and examine how differential profiles of adherence relate to obesity in children and adults of the Delta region. The specific objective of this cooperative agreement is to establish and support a cooperative partnership between the United States Department of Agriculture (USDA), Agricultural Research Service (ARS) and Tufts University (Tufts) which will permit scientific work amongst ARS/Tufts Nutrition Scientists to construct conceptually and culturally appropriate survey tools to assess DG adherence barriers and facilitators for African-American and Caucasian children and their caregivers of the Lower Mississippi Delta (LMD) region and elsewhere in the U.S.
1b.Approach (from AD-416):
The Delta Obesity Prevention Research Unit (Delta OPRU), in partnership with Tufts University and other research cooperators, will use data obtained from nominal group methodology, to construct conceptually and culturally appropriate survey tools to assess the adherence to the USDA Dietary Guidelines of African American and Caucasian fifth grade children and their caregivers in the Lower Mississippi Delta region and elsewhere in the U.S. Tufts scientists will contribute expertise in dietary intake assessment, sampling design, and data entry management for this survey the HEALTH study. Tufts scientists will also provide technical expertise in pilot research using dietary data, for the identification of dietary patterns which will be adapted to the DG for the LMD and other participating sites. These data will be used to determine the feasibility of the adoption of these patterns in the prevention of obesity. Tufts’ representative will provide technical expertise in proposal writing, data analysis and manuscript preparation.
For the overall life of the project, during the first phase of the HEALTH study, Nominal Group Techniques (NGTs) were conducted with 5th graders and their caregivers for three major racial ethnic groups to collect data on barriers and facilitators to meeting the USDA dietary recommendations. Relationships were established within the Boston Public School District that facilitated future phases of the study.
During the second phase of the study, data collected during the NGTs were used to create a comprehensive questionnaire. This questionnaire is in the form of Likert scale and fill-in-the-blank question, and covers topics such as barriers and facilitators to meeting the USDA nutrition recommendations, food frequency consumption, allergies, and dairy consumption. The questionnaire was printed in both English and Spanish. In Boston, 202 caregiver child dyads met study requirements for race and public school grade and successfully completed the HEALTH Study questionnaires. Each dyad was consented according to study protocol and compensated for their time. Data on race; income; education level; city, state, and country of origin; as well as anthropometrics were also collected. Once completed, questionnaires were entered into spreadsheets for inventory, then cleaned and reviewed for accuracy. Once it was confirmed that the recruitment goals for each racial ethnic group were achieved, booklets were prepared for scanning. The Boston HEALTH Study site, based at Northeastern University, coordinated the scanning of the Scantron booklets collected from each of the five HEALTH Study sites. A SAS dataset was created for each site, synthesized by site and racial ethnic group, and analyzed. Manuscripts are currently in preparation.
The Boston HEALTH Study site continued to coordinate the scanning and processing of the data collected from each of the five HEALTH Study sites. Final quality control checks were performed on all data sets, synthesized by study site and racial ethnic group. When data errors were identified, the Boston site coordinated with other sites to correct data and rescan or fix errors. A final preparation was then done of the SAS datasets for nutrient analysis. Monthly phone meetings have been held between PIs at each study site in order to discuss results and prepare manuscripts.