National Survey Data on Food Consumption Uses and Recommendations (1984) / Chapter Skim
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6 Recommendations for Early Action
6 Recommendations for Early Action
Pages 65-86
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From page 65... ...
Recommendations for early action are discussed in this chapter and those expected to require longer-term implementation are discussed in the next chapter. The recommendations of the Committee are related primarily to modifications in survey design, food intake methods, and information on the composition of foods, that is, information on what people are eating and information on who is eating that food.
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From page 66... ...
is the likely agency to.lead in implementing several of these recommendations. The Committee recommends that USDA serve as the lead federal agency for survey standardizations dealing primarily with the food-related aspects of federally funded food consumption and dietary intake surveys.
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From page 67... ...
CONTINUOUS SURVEYS A consistent need of all data users is the timely reporting of survey information. Thus, implementation of changes in food intake methods that would provide for timely reporting of data and other survey results would be beneficial to all users of food consumption and dietary intake surrey data.
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From page 68... ...
This design would reduce the problem of input overload to a minimum. The data collected in the Committee's proposed continuous Individual Dietary Intake survey should include the detailed population and socioeconomic descriptors that adequately and precisely identify the survey subjects and their household characteristics, as well as their food consumption and dietary intake.
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From page 69... ...
Dmplementation of a continuous system would result in the more efficient and timely collection, processing, ant reporting of survey data on food consumption ant dietary intake. COLLECTION OF REPLICATED DATA The core surveys yield statistical data on food consumption and dietary intake of two general types: data related to group mean intake across population groups and data relates to intake ant distribution of intake within population groups.
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From page 70... ...
They take on particular importance when they can be linked to additional data sources for nationwide food and nutrition monitoring. The Committee recommends that USDA, at a minimum, continue to collect replicated data on food consumption and dietary intake of individuals, e.g., that USDA maintain, at a minimum, the collection of 3-day intake information used in the individual intake phase of the 1977-1978 NFCS.
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From page 71... ...
Committee recommendations for modifying these methods are made in response to those user needs. In some instances, a modification suggested by the Committee involves only one of the core surveys; in other instances, the Committee has recommended joint action to effect common changes in food intake methods.
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From page 72... ...
As discussed later in this report, ~ tandardization should also include the coding of food intake data and the use of common data bases on the composition of foods. The Committee notes that USDA has previously commissioned studies to evaluate food intake methods.
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From page 73... ...
Thin telephone survey report serves to point out that future surveys should collect better information on this source of nutrients. More detailed data, collected within the context of a food consumption and dietary intake survey, can show how frequently supplements are being ingested ant when and will provide a more realistic perspective on the nutrients present in the dicta of survey subjects.
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From page 74... ...
Both the NFCS and the NHANES have obtained some information on discretionary dietary use of alcoholic beverages and salt. However, data users have expressed a need for increased quantitative information on the use of discretionary dietary components.
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From page 75... ...
Qualitative and quantitative information is also used to estimate dietary exposure to nonnutritive food components that have biologic or physiologic importance. Thus, the qualitative ant quantitative data developed about and from food intake information are pivotal for many uses of national survey data on foot consumption and dietary intake.
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From page 76... ...
The Committee views the continuing expansion of the data on the composition of foods as an important contribution to the more effective and wider use of the results of food consumption and dietary intake surveys . The Committee, us ing the survey purposes as guides, recommends that USDA serve as lead agency in th is ef fort to develop a cos tee f fective approach to expanding the data base on the composition of foods, e.g., through the identification and chemical analysis of core foods in the diet of the U
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From page 77... ...
An absolute requirement of any effective use of survey data on food consumption and dietary intake is a complete data base on the qualitative and quantitative information about the composition of foods . To improve use of future food consumption and dietary intake surveys, the Committee recommends that the data bases on the composition of foods be expanded and improved.
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From page 78... ...
The Committee, with the survey purposes as guides, recommends that USDA serve an lead agency in this effort . STANDARDIZED DATA ON COMPOSITION OF FOODS , Many uses of food consumption and dietary intake survey data do not require information on the foods as they are consumed, but involve informs tion on the foot consumption and dietary intake of components that is derived from food consumption information.
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From page 79... ...
For reasons cited earlier having to do with the purposes of the core surveys, the Committee strongly recommends that USDA serve as the lead agency in joint agency efforts to standardize common data on the composition of foods that are used in federally funded food consumption and dietary intake surveys. Because special NHANES needs must be recognized, taken into account, and met, the Committee recommends that the NCHS survey planners be directly involved in these joint agency efforts.
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From page 80... ...
LINKAGE BETWEEN NFCS AND NHANES Art important use of the data from the core surveys involves the ability of users to identify current socioeconomic and foot purchas ing factors associated with food consumption patterns, dietary intake of food components, and nutritional status. In addition, these data are used to ascertain the relation of program or policy changes to desired changes in food consumption patterns, dietary intake of foot components, and nutritional s tattle.
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From page 81... ...
The Committee has previously discussed the need to have comparable and compatible food intake methods and standardized data on the composition of foods to make more effective conjoint use of the separate data bases. Linkages among foot consumption, dietary intake, and nutritional status data bases should also include Chose related to the selection and weighting of survey sub jects and their precise description.
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From page 82... ...
DETAILED DESCRIPTION OF DATA HANDLING TECHNIQUES Data users suggested the incorporation of detailed information on data collection, processing, data reporting, ant other data handling techniques into the data tapes. Such descriptions would serve user needs for more detailed description about the data handling (data documentation)
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From page 83... ...
Where methods are standardized in and common to the two core surveys, the Committee recommends that each agency ts data base tapes contain identical data documentation. IMPLEMENTATION OF A POSTRELEASE INFORMATION SYSTEM AS illu8 bated in Chapters 2, 3, 4, and 5, uses for data on the food consumption and dietary intake of the U.S.
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From page 84... ...
the Committee are related primarily to modifications in survey design, data processing, and reporting that respond to expressed user needs for data that are timely and that are comparable ant compatible across the separate NFCS and NHA~S data bases. Others concern modifications in food intake methods and use of intake methods common to the separate surveys.
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From page 85... ...
Although not specifically within the Committee's charge, the general reco~endations are designed to respond to needs of both current and future data users for more detailed use of survey tats.
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From page 86... ...
Because come nutrients are known to be absent from some foods and foot categories, not all nutrient analyses are desired or needed for all 42 categories. Percent of food categories with substantial data is calculated only for categories in which nutrient is suspected to be present in important amount.
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