title: Estimating food and nutrient intake from food frequency questionnaire data by reference to a standard weighed diet survey.
abstract: INTRODUCTION: The food frequency questionnaire is widely regarded as more appropriate for ranking and grouping individuals according to levels of nutrient intake than for estimating absolute nutrient amounts. AIMS: To develop a method for estimation of amount of nutrient intake from food frequency questionnaires by reference to an independent weighed dietary survey. METHOD: Six stages of the method are described and illustrated in the estimation of total dietary fat from the 1984-85 Health and Lifestyle Survey using the 1986-87 Dietary and Nutritional Survey of British Adults as the reference standard. RESULTS: Several points support the validity of the approach although limitations are identified.
authors.affiliation: ESDS, Lindop Building, University of Hertfordshire, Hatfield Campus, College Lane, Hatfield, Herts. AL10 9AB, UK.
authors.forename: M. E.
authors.initials: ME
authors.lastname: Tefft
authors.forename: D. R.
authors.initials: DR
authors.lastname: Boniface