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Patricia Britten

Publications and source records attributed to Patricia Britten.

9 recordsLinked to original sources
PubMed2005

The 2005 Dietary Guidelines Advisory Committee: developing a key message.

The 2005 Dietary Guidelines Advisory Committee used an evidence-based approach to evaluate the science base for the relationships of diet and physical activity and health. Nine key messages and corresponding conclusions were included in the 2005 Dietary Guidelines Advisory Committee report. This article describes the development process, scientific basis, and specific recommendations for one of the key messages.

Age Factors↗
PubMedDate not supplied

Development of food group composites and nutrient profiles for the MyPyramid Food Guidance System.

OBJECTIVE: To identify food selections in each MyPyramid food group or subgroup reflective of typical consumption patterns by Americans, and the nutrient intake that can be expected from consuming a specified amount of these foods from each group, in a low-fat and no-added-sugars form. DESIGN: An analytical process to identify food consumption choices within each food group and subgroup using national food consumption surveys, and to identify the expected nutrient content of each group using food composition databases. VARIABLES MEASURED: Relative consumption of foods within each food group; nutrient content for each food group and subgroup (energy plus 27 nutrients). ANALYSIS: Disaggregated foods from consumption surveys into component ingredients. Combined similar ingredients into "item clusters" and determined relative consumption of each. Calculated a consumption-weighted nutrient profile for each food group. RESULTS: Consumption-weighted food intake selections and nutrient profiles were developed for all MyPyramid food groups and subgroups. CONCLUSIONS AND IMPLICATIONS: This analytical process derived food group and subgroup composites which estimate typical food choices within each MyPyramid food group. These were used to assess the adequacy of the MyPyramid food intake patterns as they were being iteratively developed.

Cluster Analysis↗
PubMedDate not supplied

Developing the consumer interface for the MyPyramid Food Guidance System.

OBJECTIVE: To assess consumer response to potential graphics, slogans, and messages for the consumer interface of the MyPyramid Food Guidance System. DESIGN: Qualitative research conducted in two phases, composed of focus groups and Web-TV testing. SETTING: Professional market research facilities in Baltimore, MD, and Chicago, IL, and Web-TV. PARTICIPANTS: Phase 1,77 adults in 10 groups; Phase 2,407 adults via Web-TV. PHENOMENON OF INTEREST: Consumer response to potential graphic images, slogans, and messages for the Food Guidance System. ANALYSIS: A content analysis was used to summarize comments from focus groups and Web-TV tests into meaningful themes. Frequencies were calculated for responses. RESULTS: Respondents preferred the familiarity of the pyramid shape and found graphics and slogans that were personal, active, and positive to be appealing. CONCLUSIONS AND IMPLICATIONS: The consumer interface for the MyPyramid Food Guidance System was shaped by consumer feedback that identified appealing and useful elements and avoided elements that were potentially confusing or less meaningful. Consumers preferred images and messages that were perceived as new, personal, and active, but they desired some continuity with the original Pyramid shape.

Adult↗
PubMedDate not supplied

Impact of using updated food consumption and composition data on selected MyPyramid Food Group nutrient profiles.

OBJECTIVE: To examine the changes observed in 5 nutrients of selected USDA food subgroups by partitioning the overall changes into those caused by consumption changes over time, and those caused by nutrient database revisions. DESIGN: Population-weighted estimates of food group intakes (composites) were developed using 24-hour recall data from CSFII 1994-96 and NHANES 1999-2000. Nutrient profiles of these composites were developed using Standard Reference (SR) data (SR11 and SR16-1). SUBJECTS: A total of 14,262 and 8070 individuals over the age of 2 years from CSFII and NHANES, respectively, composed the study sample. OUTCOME MEASURES: Absolute and percent change in food group nutrient content caused by food consumption changes and nutrient database updates. ANALYSIS: Changes due to consumption differences were determined by comparing nutrient profiles created with CSFII and NHANES using SR11. Changes due to nutrient database differences were determined by comparing nutrient profiles created from NHANES data using SR11 and SR16-1 nutrient values. RESULTS: Consumption differences resulted in some variations in the food group nutrient content, but a majority of the changes were associated with use of the updated nutrient database. For example, vitamin A level in the orange vegetable subgroup was increased by 2.4% owing to consumption (from CSFII to NHANES), whereas the level was decreased by 38% due to nutrient updates (from SR11 to SR16-1). CONCLUSION AND IMPLICATIONS: Consideration of the changes in nutrient databases, as well as in food consumption, is essential in monitoring both the trends in the food choices Americans make and the adequacy of their diets.

Databases, Factual↗
PubMedDate not supplied

MyPyramid food intake pattern modeling for the Dietary Guidelines Advisory Committee.

Modeling analyses using the MyPyramid intake patterns were conducted in collaboration with the 2005 Dietary Guidelines Advisory Committee in response to their research questions and to determine likely effects of possible recommendations on overall dietary adequacy. Scenarios modeled included the feasibility of using the food patterns for lacto-ovo-vegetarian diets, of varying fat levels within the patterns, and of increasing dietary flexibility through food group substitutions. Food pattern modeling was a useful tool to identify possible impacts on diet quality of potential Dietary Guidelines recommendations. Modeling analyses can help researchers explore the overall effect of specific dietary recommendations on intake patterns.

Databases, Factual↗
PubMedDate not supplied

Consumer research for development of educational messages for the MyPyramid Food Guidance System.

OBJECTIVE: To assess consumer understanding and use of messages from the original Food Guide Pyramid and potential concepts for a revised Food Guidance System. DESIGN: Focus groups conducted in two phases, in 2002 and 2004. SETTING: Market research facilities in Baltimore, Chicago, and Houston. PARTICIPANTS: Phase I, 178 participants in 18 groups: 6 of general adult consumers, 4 of adults over 60 years of age, 4 of food stamp recipients, and 4 of overweight adults. Phase II, 75 participants in 8 groups: 4 of younger adults and 4 of older adults. PHENOMENON OF INTEREST: Understanding and use of original Pyramid symbol and messages and potential concepts for a revised food guidance system. ANALYSIS: Focus group sessions were audiotaped and transcribed. Content analysis summarized comments into meaningful themes. RESULTS: Key concepts of the original Pyramid were widely understood, but specific knowledge was limited and misunderstandings common, especially related to servings and food group placement. Detailed information about whole grains, types of fats, vegetable subgroups, and physical activity was lacking. CONCLUSIONS AND IMPLICATIONS: While consumers are aware of general concepts about healthy eating, they lack specific knowledge to help them implement recommendations. Educators can help by providing consumers with concrete examples and specific information.

Adult↗
PubMedDate not supplied

Development of food intake patterns for the MyPyramid Food Guidance System.

OBJECTIVE: The purpose of this research was to design food intake patterns based on typical American food selections that would meet Dietary Guidelines and Dietary Reference Intake recommendations. DESIGN: Analytic process to identify appropriate amounts from each food group that together will meet nutritional goals for various age/gender groups. VARIABLES MEASURED: Projected intake of energy, 9 vitamins, 8 minerals, 8 macronutrients, and dietary fiber in each food intake pattern. ANALYSIS: Iterative comparison of nutrients in each food intake pattern to Dietary Reference Intakes and Dietary Guidelines recommendations set as goals for that pattern. RESULTS: Food intake patterns were established that met almost all nutrient goals within estimated energy needs. Intakes of vitamin E at all energy levels, potassium at lower energy levels, and sodium at higher energy levels did not meet goals. CONCLUSIONS AND IMPLICATIONS: The food intake patterns provide a foundation of food choices that will meet nutritional recommendations. They form the scientific basis for the MyPyramid Food Guidance System and can also be used as a starting point for developing other educational programs or materials.

Adolescent↗