The accuracy of telephone-administered dietary recalls was determined for a group of 159 elderly subjects. Accuracy was assessed by comparing a telephoned 24-hour recall that included a meal consumed at a congregate meal site on the day prior to the telephone interview with data on observed intake for that meal obtained by trained dietitians. For 12 of the 15 nutrients evaluated, the bias in the mean recalled intake data was less than 10 percent. After appropriate adjustment for the imprecision in the data on observed intake, there was evidence of an attenuated regression slope relating the individual recalls to the true intakes for only five of the 15 nutrients evaluated. / Two statistically significant models for predicting the accuracy of the dietary recall data on the basis of health, dietary, social and demographic characteristics were developed. Although this latter work was of a hypothesis-generating nature, the clustering of variables related to heightened awareness of what is eaten in one of the models suggests that further evaluation of these types of predictive variables is appropriate.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.75430 |
| Date | January 1987 |
| Creators | Dubois, Sheila. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Epidemiology and Biostatistics.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000425563, proquestno: AAINL44292, Theses scanned by UMI/ProQuest. |
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