Relative validity of dietary patterns during pregnancy assessed with a food frequency questionnaire

Abstract This study aimed to assess the relative validity of maternal dietary patterns derived from a semi-quantitative food frequency questionnaire (FFQ). A total of 162 pregnant women aged 19-40-years-old were enrolled from the Universiti Sains Malaysia (USM) Birth Cohort Study in year 2010 and 20...

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Bibliographic Details
Published in:International journal of food sciences and nutrition 2013-09, Vol.64 (6), p.668-673
Main Authors: Loy, See-Ling, Jan Mohamed, Hamid Jan B.
Format: Article
Language:English
Subjects:
Adult
Cohort Studies
Diet
Diet - ethnology
Dietary assessment
Female
food frequency questionnaire
Food science
Health Promotion
Humans
Malaysia
Nutrition
Nutrition Assessment
Nutrition Policy
Patient Compliance - ethnology
Pregnancy
Pregnancy Trimester, Second
Pregnancy Trimester, Third
Prenatal Nutritional Physiological Phenomena - ethnology
Principal Component Analysis
principle component analysis
Prospective Studies
Reproducibility of Results
Surveys and Questionnaires
Women
Young Adult
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Summary:Abstract This study aimed to assess the relative validity of maternal dietary patterns derived from a semi-quantitative food frequency questionnaire (FFQ). A total of 162 pregnant women aged 19-40-years-old were enrolled from the Universiti Sains Malaysia (USM) Birth Cohort Study in year 2010 and 2011. The FFQ was compared with three 24-h dietary recalls (DRs). Two major dietary patterns were derived from the principle component analysis which are labeled as Healthy and Less-Healthy patterns. The Pearson correlation coefficients between FFQ and DRs for Healthy and Less-Healthy patterns were 0.59 and 0.63, respectively. At least 45% of the participants were correctly classified into the same third from the FFQ and DR for both dietary patterns. The weighted kappa showed moderate agreement for Healthy pattern while good agreement for Less-Healthy pattern between these two dietary assessment methods. Our results indicate reasonable validity of the dietary patterns identified from the FFQ in pregnant women.
ISSN:0963-7486
1465-3478
DOI:10.3109/09637486.2013.787398