Nutrient estimation from an FFQ developed for a black Zimbabwean population

There is little information in the literature on methods of food composition database development to calculate nutrient intake from food frequency questionnaire (FFQ) data. The aim of this study is to describe the development of an FFQ and a food composition table to calculate nutrient intake in a B...

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Bibliographic Details
Published in:Nutrition journal Vol. 4; no. 1; p. 37
Main Authors: Merchant, Anwar T, Dehghan, Mahshid, Chifamba, Jephat, Terera, Getrude, Yusuf, Salim
Format: Journal Article
Language:English
Published: England BioMed Central 13.12.2005
BMC
Subjects:
Adult
Aged
Aged, 80 and over
Black or African American
Black People
Databases as Topic
Diet
Diet Records
Dietary Carbohydrates - administration & dosage
Energy Intake
Female
Food
Humans
Income
Male
Middle Aged
Nutritional Physiological Phenomena
Nutritive Value
Rural Population
Seasons
Surveys and Questionnaires
United States
United States Department of Agriculture
Urban Population
Zea mays
Zimbabwe
United States
Zimbabwe
ISSN:1475-2891, 1475-2891
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Summary:There is little information in the literature on methods of food composition database development to calculate nutrient intake from food frequency questionnaire (FFQ) data. The aim of this study is to describe the development of an FFQ and a food composition table to calculate nutrient intake in a Black Zimbabwean population. Trained interviewers collected 24-hour dietary recalls (24 hr DR) from high and low income families in urban and rural Zimbabwe. Based on these data and input from local experts we developed an FFQ, containing a list of frequently consumed foods, standard portion sizes, and categories of consumption frequency. We created a food composition table of the foods found in the FFQ so that we could compute nutrient intake. We used the USDA nutrient database as the main resource because it is relatively complete, updated, and easily accessible. To choose the food item in the USDA nutrient database that most closely matched the nutrient content of the local food we referred to a local food composition table. Almost all the participants ate sadza (maize porridge) at least 5 times a week, and about half had matemba (fish) and caterpillar more than once a month. Nutrient estimates obtained from the FFQ data by using the USDA and Zimbabwean food composition tables were similar for total energy intake intra class correlation (ICC) = 0.99, and carbohydrate (ICC = 0.99), but different for vitamin A (ICC = 0.53), and total folate (ICC = 0.68). We have described a standardized process of FFQ and food composition database development for a Black Zimbabwean population.
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ISSN:1475-2891
1475-2891
DOI:10.1186/1475-2891-4-37