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Titolo:
The prevalence and impact of 'atypical' days in 4-day food records
Autore:
Craig, MR; Kristal, AR; Cheney, CL; Shattuck, AL;
Indirizzi:
Fred Hutchinson Canc Res Ctr, Collaborat Data Serv, Seattle, WA 98109 USA Fred Hutchinson Canc Res Ctr Seattle WA USA 98109 , Seattle, WA 98109 USA Henrico Doctors Hosp, Richmond, VA USA Henrico Doctors Hosp Richmond VA USA rico Doctors Hosp, Richmond, VA USA Univ Washington, Nutr Sci Program, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 r Sci Program, Seattle, WA 98195 USA
Titolo Testata:
JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION
fascicolo: 4, volume: 100, anno: 2000,
pagine: 421 -
SICI:
0002-8223(200004)100:4<421:TPAIO'>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEALTH TRIAL FEASIBILITY; ENERGY-INTAKE; MINORITY POPULATIONS; OBESE; WOMEN; VALIDITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Clinical Medicine
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
M.R. Craig et al., "The prevalence and impact of 'atypical' days in 4-day food records", J AM DIET A, 100(4), 2000, pp. 421

Abstract

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 oneor more day's food intake as "more than usual" or "less than usual. " Totalamounts and nutrient densities (percent of energy or grams per 1,000 kcal)were examined for all macronutrients, fiber, vitamin C, beta carotene, andcalcium. 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 ttests 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 I 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 largeeffect 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 toincorporate information on atypical intake days when analyzing and interpreting research results.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 00:40:37