Evaluation of a bar-code system for nutrient analysis in dietary surveys

A novel system for nutrient analysis has been developed and tested over 5 years. Its key features are a nutrient database of 600 commonly eaten foods (95% of foods eaten in 7-day surveys); a booklet identifying each food with a bar code, bar codes for gram weight and for portion sizes (small, medium...

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Published inPublic health nutrition Vol. 2; no. 4; pp. 579 - 586
Main Authors Anderson, Annie S, Maher, Linda, Ha, Tom K, Cooney, Josephine, Eley, Susan, Martin, Marilyn, Vespasiani, Giacomo, Bruni, Mauro, Lean, Michael EJ
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.04.1999
Subjects
Adolescent
Adult
adults
Aged
Automatic Data Processing
Cross-Sectional Studies
data analysis
Diet Surveys
Dietary intakes
dietary surveys
evaluation
experimental design
Female
Food - statistics & numerical data
foods
Humans
Male
Middle Aged
Nutrient analysis
nutrient content
nutritionists
portion size
Scotland - epidemiology
Scotland
Dietary intakes
Nutrient analysis
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Summary:A novel system for nutrient analysis has been developed and tested over 5 years. Its key features are a nutrient database of 600 commonly eaten foods (95% of foods eaten in 7-day surveys); a booklet identifying each food with a bar code, bar codes for gram weight and for portion sizes (small, medium, large) and a bar-code reader with dietary analysis software for PCs. In the present study the bar-code system has been evaluated by comparison with a commonly used manual entry nutrient analysis software for dietitians' use. Cross-sectional. Glasgow city district. One hundred and sixty adults aged 18-65 years old. Comparing mean intakes for macro- and micronutrients, using the Bland and Altman method, the bias between the two methods was small, ranging from 0.93 to 1.03. The bar-code system took significantly less professional time in data entry and nutrient analysis than the widely used manual system (29min per 7-day diary vs. 47 min per 7-day diary, P < 0.001). It is suggested that the bar-code system offers greater speed with a saving of professional time needed for nutrient analysis of dietary surveys. This system is commended for maintaining accuracy while promoting economy.
Bibliography:http://www.cabi.org/
ArticleID:00077
PII:S1368980099000774
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ObjectType-Article-1
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content type line 23
ISSN:1368-9800
1475-2727
DOI:10.1017/S1368980099000774