Calcium intake in the elderly: validation of a dietary questionnaire
| Autor: | Cyrus Cooper, Michael L. Nelson, Valda W. Bunker, Gillian F. Hague |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
medicine.medical_specialty
Nutrition and Dietetics Dietary assessment business.industry Osteoporosis Medicine (miscellaneous) chemistry.chemical_element Healthy elderly Calcium medicine.disease Endocrinology chemistry Environmental health Internal medicine Epidemiology medicine Dietary Questionnaire business |
| Zdroj: | Journal of Human Nutrition and Dietetics. 1:115-127 |
| ISSN: | 1365-277X 0952-3871 |
| DOI: | 10.1111/j.1365-277x.1988.tb00443.x |
| Popis: | Epidemiological studies of calcium and osteoporosis have been hampered by the lack of a suitable tool for assessing calcium intake. This report describes a new frequency and amount questionnaire for measuring present and past calcium intake in the elderly. The validity of the questionnaire was tested against two commonly used standards of dietary assessment, five-day duplicate diets and seven-day weighed dietary inventories. The resulting correlation coefficients were, respectively, r= 0.76 and r= 0.69, while that for repeatability was r= 0.84. Furthermore, the questionnaire categorized subjects into thirds of the distribution of intake with almost no gross misclassification. It is suggested that the present findings may be extended to the majority of normal, healthy elderly subjects, implying wide application for the questionnaire in the assessment of calcium intake in the elderly. |
| Databáze: | OpenAIRE |
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