Assessing the validity of a food frequency questionnaire among low-income women in São Paulo, southeastern Brazil Avaliação de validade de um questionário de freqüência alimentar em mulheres de baixa renda residentes em São Paulo, Brasil
This study describes the validity of a food frequency questionnaire (FFQ) in 93 low-income women (20-65 years), participating in a case-control study in São Paulo, Brazil. Two FFQ (FFQ1 and FFQ2, 12 months apart) and three 24-hour dietary recalls (24hR) were conducted between 2003 and 2004 to estima...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz
2010-11-01
|
Series: | Cadernos de Saúde Pública |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2010001100007 |