Development and validation of a food frequency questionnaire (FFQ-Porto Alegre) for adolescent, adult and elderly populations from Southern Brazil Desenvolvimento e validação de um questionário de freqüência alimentar (QFA-Porto Alegre) para a população de adolescentes, adultos e idosos do Sul do Brasil
This study assessed the validity of a food frequency questionnaire (FFQ-Porto Alegre), covering 135 food items, in comparison with the average of two consecutive 24-hour dietary recall questionnaires for adolescents, adults, and elderly who were randomly selected from a population-based survey. The...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz
2010-11-01
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Series: | Cadernos de Saúde Pública |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2010001100008 |