Validity and reliability of an FFQ for use with adolescents in Ho Chi Minh City, Vietnam

Bibliographic Data

ID15097077
AuthorsHong Tang (0000-0003-2410-9177, Pham Ngoc Thach University of Medicine, corresponding author), Tang K Hong, Michael J Dibley (0000-0002-1554-5180, The George Institute for Global Health), David Sibbritt (0000-0003-3561-9447, University of Newcastle Australia)
Year2010
Volume13
Issue3
Pages368-375
Publication date2010-03-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenuePublic Health Nutrition (JOURNAL)
Journal identifiersISSN: 1368-9800 • E-ISSN: 1475-2727
PublisherCambridge University Press (CUP) (PUBLISHER)
DOI10.1017/s136898000999125x
PMID19706213
OpenAlexW2091608905
LanguageEN
Citations received6
References cited16

Objective The present study evaluates the reliability and validity of an FFQ designed for use with adolescents in urban Vietnam. Design A cohort study was conducted between December 2003 and June 2004. The FFQ was administered three times over a 6-month period (FFQ 1–3) and nutrient intakes were compared to those obtained from four 24 h recalls collected over the same period (24 h recalls 1–4) using crude, energy-adjusted and de-attenuated correlation coefficients. The level of agreement between the two measurements was also evaluated with Bland–Altman analysis. The percentage of nutrient intakes classified within one quintile, as well as quadratic-weighted kappa statistics, were calculated. Setting Ho Chi Minh City, Vietnam. Subjects A total of 180 students were recruited in three junior high schools. Results Coefficients ranged from 0·22 for retinol to 0·78 for fibre for short-term reliability, and from 0·30 for retinol to 0·81 for zinc for long-term reliability. Coefficients for nutrient intakes between the mean of the three FFQ and mean of four 24 h recalls were mostly around 0·40, but higher for energy-adjusted nutrients. After allowing for within-person variation, the mean coefficient was 0·52 for macronutrients and 0·46 for micronutrients. There were a relatively high proportion of nutrient intakes classified within one quintile and a small number grossly misclassified. Kappa values shows ‘fair’ to ‘good’ agreement for all food/nutrient categories, while the Bland–Altman plots indicated that the FFQ is accurate in assessing nutrient intake at a group level. Conclusions This newly developed FFQ is a valid tool for measuring nutrient intake in adolescents in urban Vietnam

Animal science · Biology · Cohen's kappa · Cohort · Environmental health · Kappa · Limits of agreement · Micronutrient · Nuclear medicine · Nutrient · Statistics · Chemistry · Child Nutrition and Water Access · Demography · Mathematics · Medicine · Nutritional Studies and Diet · Obesity, Physical Activity, Diet