title: Evaluation of the usefulness of the cross-check dietary history method in longitudinal studies.
abstract: The data quality control of the first 4 years of an ongoing study (10 years duration) in a few hundred women and an additional control group is presented with regard to the measurements of the usual nutrient intake, covering a 1 year period, by means of the cross-check dietary history method. The results show that with regard to the disturbing time factors the cross-check dietary history method is (a) reasonably reproducible for most nutrients except vitamin A and vitamin C, (b) does not show test effects when interviews were taken only once a year, (c) does show observer effects. The method has a reasonable validity. It is concluded that, on an individual basis, the nutrient variables are not appropriate for a detailed calculation of changes per unit time but are useful as a general measure for the development of the individual (e.g. the average change per time unit over a longer period). For this reason the method can be reliably used in longitudinal studies to evaluate the role of diet in relation to chronic disease.
authors.affiliation: Netherlands Institute for Dairy Research (NIZO), Ede.
authors.forename: E C
authors.initials: EC
authors.lastname: van Beresteyn
authors.forename: M A
authors.initials: MA
authors.lastname: van 't Hof
authors.forename: H J
authors.initials: HJ
authors.lastname: van der Heiden-Winkeldermaat
authors.forename: A
authors.initials: A
authors.lastname: ten Have-Witjes
authors.forename: R
authors.initials: R
authors.lastname: Neeter
mesh_terms: D000368:Aged; D001205:Ascorbic Acid / Q000008:administration & dosage; D001827:Body Height; D001835:Body Weight; D002118:Calcium / Q000652:urine; D003404:Creatinine / Q000652:urine; D004034:Diet Surveys / Q000379:methods* / Q000592:standards; D004040:Dietary Carbohydrates / Q000008:administration & dosage; D004041:Dietary Fats / Q000008:administration & dosage; D004043:Dietary Fiber / Q000008:administration & dosage; D004044:Dietary Proteins / Q000008:administration & dosage; D002149:Energy Intake; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008137:Longitudinal Studies; D008875:Middle Aged; D009584:Nitrogen / Q000652:urine; D009749:Nutrition Surveys / Q000379:methods*; D010758:Phosphorus / Q000652:urine; D011786:Quality Control; D012964:Sodium / Q000652:urine; D014801:Vitamin A / Q000008:administration & dosage
chemical_list: D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004043:Dietary Fiber; D004044:Dietary Proteins; D014801:Vitamin A; D010758:Phosphorus; D012964:Sodium; D003404:Creatinine; D009584:Nitrogen; D001205:Ascorbic Acid; D002118:Calcium