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

Hong, TK; Dibley, MJ; Sibbritt, D

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

Hong, TK Dibley, MJ Sibbritt, D

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Publication Type:: Journal Article
Citation:: Public Health Nutrition, 2010, 13 (3), pp. 368 - 375
Issue Date:: 2010-01-01

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Field	Value	Language
dc.contributor.author	Hong, TK	en_US
dc.contributor.author	Dibley, MJ	en_US
dc.contributor.author	Sibbritt, D https://orcid.org/0000-0003-3561-9447	en_US
dc.date.issued	2010-01-01	en_US
dc.identifier.citation	Public Health Nutrition, 2010, 13 (3), pp. 368 - 375	en_US
dc.identifier.issn	1368-9800	en_US
dc.identifier.uri	http://hdl.handle.net/10453/22495
dc.description.abstract	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. © 2009 The Authors.	en_US
dc.relation.ispartof	Public Health Nutrition	en_US
dc.relation.isbasedon	10.1017/S136898000999125X	en_US
dc.subject.classification	Nutrition & Dietetics	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Obesity	en_US
dc.subject.mesh	Diet	en_US
dc.subject.mesh	Diet Surveys	en_US
dc.subject.mesh	Nutrition Assessment	en_US
dc.subject.mesh	Adolescent	en_US
dc.subject.mesh	Adolescent Nutritional Physiological Phenomena	en_US
dc.subject.mesh	Cohort Studies	en_US
dc.subject.mesh	Energy Intake	en_US
dc.subject.mesh	Female	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Reproducibility of Results	en_US
dc.subject.mesh	Risk Factors	en_US
dc.subject.mesh	Sensitivity and Specificity	en_US
dc.subject.mesh	Surveys and Questionnaires	en_US
dc.subject.mesh	Urban Health	en_US
dc.subject.mesh	Urban Population	en_US
dc.subject.mesh	Vietnam	en_US
dc.title	Validity and reliability of an FFQ for use with adolescents in Ho Chi Minh City, Vietnam	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	13	en_US
utslib.for	1117 Public Health and Health Services	en_US
utslib.for	1110 Nursing	en_US
utslib.for	11 Medical and Health Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Public Health
pubs.organisational-group	/University of Technology Sydney/Strength - CHSP - Health Services and Practice
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	13	en_US

Abstract:

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. © 2009 The Authors.

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http://hdl.handle.net/10453/22495