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

• Главные авторы: HERNÁNDEZ-AVILA MAURICIO (Автор), ROMIEU ISABELLE (Автор), PARRA SOCORRO (Автор), HERNÁNDEZ-AVILA JUAN (Автор), MADRIGAL HERLINDA (Автор), WILLETT WALTER (Автор)
• Формат: ‌
• Опубликовано: Instituto Nacional de Salud Pública, 1998-01-01T00:00:00Z.
• Предметы: article
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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...