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

• Main Authors: Marly Augusto Cardoso (Author), Luciana Yuki Tomita (Author), Elaine Cristina Laguna (Author)
• Format: Book
• Published: Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, 2010-11-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

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 estim...