title: Register of dietary assessment calibration-validation studies: a status report.
abstract: A register of dietary assessment calibration-validation studies was created to improve communication between investigators, avoid duplication of effort, and identify gaps in knowledge. Calibration-validation studies were defined as investigations in which the participants completed at least two different dietary measurements. A questionnaire soliciting descriptive information about such studies was widely distributed. Completed questionnaires were received from October 1993 through September 1994 and the data from them were entered into a computer database. Preliminary individual reports were mailed to all contributors in September 1994 for revision or updating. Responses received by the end of October 1994 were incorporated into the database. A status report was published in December 1994. The report includes descriptions of 84 studies, 15 summary tables, and 6 reference indexes. Of the 84 studies included, 44 (52%) were conducted in North America, 35 (42%) in Europe, 2 (2%) in South America, 2 (2%) in Asia, and 1 (1%) in Australia. Sixty-three of the 84 studies (75%) used food-frequency questionnaires, 52 (62%) used food records, 35 (42%) used one or more dietary recalls, 11 (13%) used biological measures, and 8 (10%) used diet histories. Plans for maintaining and updating the register are being developed.
authors.affiliation: Division of Cancer Prevention and Control, National Cancer Institute, Bethesda, MD. thompsof@dcpcepn.nci.nih.gov
authors.forename: F E
authors.initials: FE
authors.lastname: Thompson
authors.forename: J E
authors.initials: JE
authors.lastname: Moler
authors.forename: L S
authors.initials: LS
authors.lastname: Freedman
authors.forename: C K
authors.initials: CK
authors.lastname: Clifford
authors.forename: G J
authors.initials: GJ
authors.lastname: Stables
authors.forename: W C
authors.initials: WC
authors.lastname: Willett
mesh_terms: D015415:Biomarkers; D016208:Databases, Factual; D004032:Diet; D015930:Diet Records; D006801:Humans; D011939:Mental Recall; D015596:Nutrition Assessment; D012042:Registries; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires
chemical_list: D015415:Biomarkers