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

• मुख्य लेखकों: Marly Augusto Cardoso (लेखक), Luciana Yuki Tomita (लेखक), Elaine Cristina Laguna (लेखक)
• स्वरूप: पुस्तक
• प्रकाशित: Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, 2010-11-01T00:00:00Z.
• विषय: article
• ऑनलाइन पहुंच: 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...