Validity and reproducibility of a food frequency questionnaire to assess dietary intake of women living in Mexico City

• Main Authors: HERNÁNDEZ-AVILA MAURICIO (Author), ROMIEU ISABELLE (Author), PARRA SOCORRO (Author), HERNÁNDEZ-AVILA JUAN (Author), MADRIGAL HERLINDA (Author), WILLETT WALTER (Author)
• Format: Book
• Published: Instituto Nacional de Salud Pública, 1998-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Objective. To assess the reproducibility and validity of a 116 item semi-quantitative food frequency questionnaire (FFQ), designed to assess the relation between dietary intake and chronic diseases. Material and methods. To test the reproducibility of the FFQ questionnaire, the FFQ was administered...