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Nutrients 2015, 7(8), 6362-6374; doi:10.3390/nu7085282

Evaluation of the Relative Validity of the Short Diet Questionnaire for Assessing Usual Consumption Frequencies of Selected Nutrients and Foods

1
Centre de Recherche, Institut Universitaire de Gériatrie de Montréal, CIUSSS du Centre-est-de-l'Île-de-Montréal, Montréal H3W 1W5, QC, Canada
2
Nutrition, Université de Montréal, Montréal H3T 1A8, QC, Canada
3
Centre de Recherche sur le Vieillissement, CIUSSS de l\'Estrie-CHUS Sherbrooke, Sherbrooke J1J 3H5, QC, Canada
4
Sciences de la Santé Communautaire, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke J1H 5N4, QC, Canada
*
Author to whom correspondence should be addressed.
Received: 16 May 2015 / Revised: 16 May 2015 / Accepted: 24 July 2015 / Published: 4 August 2015
(This article belongs to the Special Issue Assessment of Nutrient Intakes)
View Full-Text   |   Download PDF [148 KB, uploaded 4 August 2015]

Abstract

A 36-item Short Diet Questionnaire (SDQ) was developed to assess usual consumption frequencies of foods providing fats, fibre, calcium, vitamin D, in addition to fruits and vegetables. It was pretested among 30 community-dwelling participants from the Québec Longitudinal Study on Nutrition and Successful Aging, “NuAge” (n = 1793, 52.4% women), recruited in three age groups (70 ± 2 years; 75 ± 2 years; 80 ± 2 years). Following revision, the SDQ was administered to 527 NuAge participants (55% female), distributed among the three age groups, both sexes and languages (French, English) prior to the second of three non-consecutive 24 h diet recalls (24HR) and validated relative to the mean of three 24HR. Full data were available for 396 participants. Most SDQ nutrients and fruit and vegetable servings were lower than 24HR estimates (p < 0.05) except calcium, vitamin D, and saturated and trans fats. Spearman correlations between the SDQ and 24HR were modest and significant (p < 0.01), ranging from 0.19 (cholesterol) to 0.45 (fruits and vegetables). Cross-classification into quartiles showed 33% of items were jointly classified into identical quartiles of the distribution, 73% into identical and contiguous quartiles, and only 7% were frankly misclassified. The SDQ is a reasonably accurate, rapid approach for ranking usual frequencies of selected nutrients and foods. Further testing is needed in a broader age range. View Full-Text
Keywords: dietary assessment; brief tools; food frequency questionnaires; validation study; aging dietary assessment; brief tools; food frequency questionnaires; validation study; aging
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shatenstein, B.; Payette, H. Evaluation of the Relative Validity of the Short Diet Questionnaire for Assessing Usual Consumption Frequencies of Selected Nutrients and Foods. Nutrients 2015, 7, 6362-6374.

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