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Relative validity of an FFQ for assessing dietary fluoride intakes of infants and young children living in Iowa
Journal article   Open access   Peer reviewed

Relative validity of an FFQ for assessing dietary fluoride intakes of infants and young children living in Iowa

Scott J Rankin, Steven M Levy, John J Warren, Julie E Gilmore and Barbara Broffitt
Public health nutrition, Vol.14(7), pp.1229-1236
07/2011
DOI: 10.1017/S1368980011000474
PMCID: PMC3805960
PMID: 21450138
url
https://doi.org/10.1017/S1368980011000474View
Published (Version of record) Open Access

Abstract

To determine the relative validity of a quantitative FFQ in assessing dietary fluoride intakes using 3 d food and beverage diaries for reference. Parents were asked to complete questionnaires for the preceding week and diaries for 3 d for their children. Fluoride intakes were estimated from 'selected' foods and beverages for questionnaires and from 'all foods and beverages' for diaries. Data collected at 6, 9, 12, 16, 20, 24, 36, 48 and 60 months were analysed cross-sectionally. A 3 d food and beverage diary and an FFQ collected through mail from children living in the state of Iowa. Children from the Iowa Fluoride Study whose parents completed both an FFQ and a 3 d food and beverage diary at each analysed time point. Correlations between daily mean dietary fluoride intake estimated from questionnaires and diaries range from 0·90 to 0·65. A quantitative FFQ can provide relative estimates of dietary fluoride intake.
Diet Surveys - methods Reproducibility of Results Fluoridation - statistics & numerical data Child Nutritional Physiological Phenomena Humans Child, Preschool Diet Records Infant Male Cariostatic Agents - administration & dosage Diet Surveys - instrumentation Iowa Sensitivity and Specificity Female Food, Fortified - statistics & numerical data Dental Caries - prevention & control Surveys and Questionnaires - standards Fluorides - administration & dosage

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