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

Hong T.K. Department of Community Health, Pham Ngoc Thach University of Medicine, 86/2 Thanh Thai Street, District 10, Ho Chi Minh City, Viet Nam|
Sibbritt D. Center for Clinical Epidemiology and Biostatistics, Faculty of Health, University of Newcastle, Callaghan, NSW, Australia| Dibley M.J. School of Public Health, George Institute for International Health, University of Sydney, NSW, Australia|

Public Health Nutrition Số 3, năm 2010 (Tập 13, trang 368-375)

ISSN: 13689800

ISSN: 13689800

DOI: 10.1017/S136898000999125X

Tài liệu thuộc danh mục: Scopus

Article

English

Từ khóa: adolescent; article; caloric intake; child nutrition; cohort analysis; diet; female; health; human; male; nutritional assessment; obesity; physiology; questionnaire; reproducibility; risk factor; sensitivity and specificity; standard; urban population; validation study; Viet Nam; Adolescent; Adolescent Nutritional Physiological Phenomena; Cohort Studies; Diet; Diet Surveys; Energy Intake; Female; Humans; Male; Nutrition Assessment; Obesity; Questionnaires; Reproducibility of Results; Risk Factors; Sensitivity and Specificity; Urban Health; Urban Population; Vietnam
Tóm tắt tiếng anh
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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