Is the food frequency consumption essential as covariate to estimate usual intake of episodically consumed foods?

Autor(es)

Verly-Jr, E. ^[1] ; Fisberg, R. M. ^[2] ; Marchioni, D. M. L. ^[2]

Afiliação do(s) autor(es)

^[1] Verly-Jr, Jr., E., Univ Estado Rio De Janeiro, Inst Social Med, Dept Epidemiol, BR-20550900 Rio De Janeiro - Brazil

^[2] Univ Sao Paulo, Sch Publ Hlth, Dept Nutr, BR-05508 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: European Journal of Clinical Nutrition; v. 66, n. 11, p. 1254-1258, NOV 2012.
• Citações Web of Science: 2

Resumo

BACKGROUNDS/OBJECTIVES: The aim of this paper is to verify the performance of the frequency of consumption as variable for prediction of the usual intakes of foods. SUBJECTS/METHODS: In total, 725 individuals who answered two nonconsecutive 24-h recall and one food frequency questionnaire (FFQ) in the `Healthy Survey-Sao Paulo-Brazil'. An additional indicator variable indicating if one is usual consumer was created before analyzing. The Multiple Source Method and National Cancer Institute method were used to estimate usual intake of selected food considering different models of prediction: with no covariates; with FFQ; with FFQ plus indicator variable; and with only indicator variable. RESULTS: For foods that are consumed every day or almost every day, the inclusion of the FFQ and/or the indicator variable as covariates resulted in similar percentiles of consumption when compared with the model with no covariates. For episodically consumed foods, the models with FFQ plus indicator variable and with only indicator variable estimated similar percentiles of intake. CONCLUSIONS: The use of the indicator variable instead the FFQ appears as a good alternative to estimate usual intake of episodically consumed foods. (AU)

• Processo FAPESP: 09/11239-9 - Ingestão habitual de alimentos entre indivíduos do município de São Paulo: estudo de base populacional
• Beneficiário: Eliseu Verly Junior
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 09/15831-0 - Fatores dietéticos, homocisteína, polimorfismos do gene MTHFR e risco cardiovascular em adultos e idosos: estudo de base populacional - ISA - capital
• Beneficiário: Regina Mara Fisberg
• Modalidade de apoio: Auxílio à Pesquisa - Regular