| Weight of foods and number of portions consumed are not proxies for expressing nutrient intakes in field studies. | |
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MedLine Citation:
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PMID: 15214262 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In order to determine whether simplified indicators for usual consumption of selected food groups, specifically those derived from either the percentage of the number of daily portions, the percentage of total daily weight consumed, or both, could serve as proxies for the conventional expression of daily energy intake, these indicators were computed and compared from food-frequency data in a data set. Food consumption was reported in frequency categories and portion sizes per month, per week, or per day, and the cumulative sum was divided by 365 to provide a daily average. The survey was done in the township of Santa Cruz and three hamlets of a rural county seat in Guatemala. Data from food-frequency questionnaires from 269 individuals (55 men and 214 women aged 16 to 86 years) were analyzed. For foods of plant origin, the percentage of total energy, percentage of total food weight, and percentage of total number of portions consumed showed low correlations (r < .45). When subdivided into specific foods and food groups (fruits and vegetables, red meat, etc.), marked differences were revealed across sites and among different indicators of consumption. Despite the simplicity of calculation, neither the percentage of weight of food in a group nor the percentage of portions consumed could serve reliably as proxies for their contributions to the percentage of total energy in this rural population in Guatemala. |
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Authors:
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Roxana Valdés-Ramos; Inés Cervantes; Ivan Mendoza; Noel W Solomons; Annie S Anderson |
Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Food and nutrition bulletin Volume: 25 ISSN: 0379-5721 ISO Abbreviation: Food Nutr Bull Publication Date: 2004 Jun |
Date Detail:
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Created Date: 2004-06-24 Completed Date: 2004-11-02 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7906418 Medline TA: Food Nutr Bull Country: Japan |
Other Details:
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Languages: eng Pagination: 166-71 Citation Subset: IM |
Affiliation:
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Instituto Nacional de Perinatología, Facultad de Medicina UNAM, Mexico. rycramos@prodigy.net.mx |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aged, 80 and over Analysis of Variance Diet / statistics & numerical data* Diet Records Energy Intake / physiology* Feeding Behavior / physiology* Female Food / statistics & numerical data* Fruit Guatemala Humans Linear Models Male Middle Aged Reproducibility of Results Vegetables |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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