Characteristics of women who frequently under report their energy intake: a doubly labelled water study

Characteristics of women who frequently under report their energy intake: a doubly labelled water study

Author Scagliusi, Fernanda Baeza Autor UNIFESP Google Scholar
Ferriolli, E. Google Scholar
Pfrimer, K. Google Scholar
Laureano, C. Google Scholar
Cunha, C. S. F. Google Scholar
Gualano, B. Google Scholar
Lourenco, B. H. Google Scholar
Lancha, A. H. Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Abstract Background/Objectives: We applied three dietary assessment methods and aimed at obtaining a set of physical, social and psychological variables that can discriminate those individuals who did not underreport ('never under-reporters'), those who underreported in one dietary assessment method ('occasional under-reporters') and those who underreported in two or three dietary assessment methods ('frequent under-reporters').Participants/Methods: Sixty-five women aged 18-57 years were recruited for this study. Total energy expenditure was determined by doubly labelled water, and energy intake was estimated by three 24-h diet recalls, 3-day food records and a food frequency questionnaire. A multiple discriminant analysis was used to identify which of those variables better discriminated the three groups: body mass index (BMI), income, education, social desirability, nutritional knowledge, dietary restraint, physical activity practice, body dissatisfaction and binge-eating symptoms.Results: Twenty-three participants were 'never under-reporters'. Twenty-four participants were 'occasional under-reporters' and 18 were 'frequent under-reporters'. Four variables entered the discriminant model: income, BMI, social desirability and body dissatisfaction. According to potency indices, income contributed the most to the total discriminant power, followed in decreasing order by social desirability score, BMI and body dissatisfaction. Income, social desirability and BMI were the characteristics that mainly separated the 'never under-reporters' from the under-reporters (occasional or frequent). Body dissatisfaction better discriminated the 'occasional under-reporters' from the 'frequent under-reporters'.Conclusions: 'Frequent under-reporters' have a greater BMI, social desirability score, body dissatisfaction score and lower income. These four variables seemed to be able to discriminate individuals who are more prone to systematic under reporting. European Journal of Clinical Nutrition (2009) 63, 1192-1199; doi:10.1038/ejcn.2009.54; published online 15 July 2009
Keywords under reporting
dietary assessment methods
doubly labelled water
energy intake
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 03/12337-8
Date 2009-10-01
Published in European Journal of Clinical Nutrition. London: Nature Publishing Group, v. 63, n. 10, p. 1192-1199, 2009.
ISSN 0954-3007 (Sherpa/Romeo, impact factor)
Publisher Nature Publishing Group
Extent 1192-1199
Origin http://dx.doi.org/10.1038/ejcn.2009.54
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000270514100005
URI http://repositorio.unifesp.br/handle/11600/31835

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