Objective: To assess the validity of a semi-quantitative food-frequency questionnaire (SFFQ) used in a large nation-wide dietary survey among 12-month-old Norwegian infants. Methods: The SFFQ was ...
Our aim was to evaluate the reproducibility of a food-frequency questionnaire (FFQ) developed in a French population, and its validity against four 24-h dietary recalls (24-HRs). For most nutrients, ...
The present diet part involves questions on intake of food groups such as milk and dairy products, bread, meat, fish, fruits and vegetables. It also involves questions on selective food intake such as ...
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