| The prevalence and impact of 'atypical' days in 4-day food records. | |
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MedLine Citation:
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PMID: 10767897 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To understand how days with atypical food intake affect estimates of usual nutrient intake from 4-day food records. PARTICIPANTS/SETTING: Secondary analyses of 4-day food records (4DFRs) (n = 2,560) collected from 1,090 women, aged 50 to 79 years, who participated in the Women's Trial Feasibility Study in Minority Populations, a randomized dietary intervention trial. DESIGN: Food records were classified as atypical if participants marked one or more day's food intake as "more than usual" or "less than usual." Total amounts and nutrient densities (percent of energy or grams per 1,000 kcal) were examined for all macronutrients, fiber, vitamin C, beta carotene, and calcium. STATISTICAL ANALYSIS: Contingency tables were used to examine associations of demographic characteristics with the likelihood of completing a 4DFR with atypical intake days. Analysis of variance was used to test whether nutrient intake differed among records with and without atypical days. Student t tests were used to identify any differences in total energy and percent energy from fat among typical and atypical intake days. RESULTS: Approximately 16% of records included at least 1 atypical day. Reporting less-than-usual intake was associated with younger age, higher income, and higher body mass index. Black women were less likely to report more-than-usual intake than whites and Hispanics. Records with less-than-usual intake had lower intakes of all nutrients analyzed except alcohol; however, there were no differences in nutrient densities. Records with more-than-usual intake had higher intakes of alcohol and all nutrients except beta carotene and vitamin C, with higher nutrient density measures of alcohol and decreased nutrient density measures of protein, vitamin C, and fiber. CONCLUSIONS: Atypical intake days are common in 4DFRs and they have a large effect on mean total intakes of most nutrients. APPLICATIONS: It is important for researchers to collect information on atypical intake days included in a 4-day food record. Strategies are needed to incorporate information on atypical intake days when analyzing and interpreting research results. |
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Authors:
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M R Craig; A R Kristal; C L Cheney; A L Shattuck |
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Publication Detail:
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Type: Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of the American Dietetic Association Volume: 100 ISSN: 0002-8223 ISO Abbreviation: J Am Diet Assoc Publication Date: 2000 Apr |
Date Detail:
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Created Date: 2000-05-03 Completed Date: 2000-05-03 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7503061 Medline TA: J Am Diet Assoc Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 421-7 Citation Subset: AIM; IM |
Affiliation:
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Fred Hutchinson Cancer Research Center, Seattle, Wash. 98109, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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African Americans Aged Alcohol Drinking Ascorbic Acid / administration & dosage Body Mass Index Calcium, Dietary / administration & dosage Diet Records* Dietary Carbohydrates / administration & dosage Dietary Fats / administration & dosage Dietary Fiber / administration & dosage Dietary Proteins / administration & dosage Eating* Educational Status European Continental Ancestry Group Female Hispanic Americans Humans Middle Aged Randomized Controlled Trials as Topic Social Class beta Carotene / administration & dosage |
| Grant Support | |
ID/Acronym/Agency:
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N01-CN25425/CN/NCI NIH HHS; N01-CN25426/CN/NCI NIH HHS; N01-CN25427/CN/NCI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Calcium, Dietary; 0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 50-81-7/Ascorbic Acid; 7235-40-7/beta Carotene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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