The Relative Validity and Reproducibility of an Iron Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Young Women

Beck, Kathryn; Kruger, Rozanne; Conlon, Cathryn A.; Heath, Anne‐Louise M; Coad, Jane; Matthys, Christophe; Jones, Bronwyn; Stonehouse, Welma

doi:10.1016/j.jand.2012.05.012

Cited by 32 publications

(58 citation statements)

References 33 publications

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“…Correlation of the Less-Healthy diet scores was stronger than the Healthy diet scores. Such trend is comparable to the findings that reported by Hu et al (1999) and Beck et al (2012). This is probably accounted for the more regular pattern of staple food and drinks consumption which were grouped in Less-Healthy pattern compared with healthy food choices which are taken less frequently in our study sample.…”

Section: Discussionsupporting

confidence: 91%

“…No participant was excluded from the analysis on the basis of dietary data misreporting as done by previous studies (Beck et al, 2012;Loy et al, 2011a). Two major dietary patterns were identified from the FFQ and DR.…”

Section: Resultsmentioning

confidence: 99%

“…Higher correlation coefficient and percentage classified into the same third were shown by Less-Healthy pattern as compared to Healthy pattern. Beck et al (2012) who ranked the young women into tertiles according to the dietary pattern scores of the FFQ and diet records showed that more than 50% of the participants were correctly classified while 510% were classified into opposing tertile. The degrees of misclassification for both dietary pattern scores in the present study were acceptable and similar to those reported by Beck et al (2012).…”

Section: Discussionmentioning

confidence: 99%

“…Beck et al (2012) who ranked the young women into tertiles according to the dietary pattern scores of the FFQ and diet records showed that more than 50% of the participants were correctly classified while 510% were classified into opposing tertile. The degrees of misclassification for both dietary pattern scores in the present study were acceptable and similar to those reported by Beck et al (2012). On the other hand, the percentage classified into the same third for Healthy pattern was lower (49.3%) than the recommendations (Masson et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

“…The evaluation of FFQ validity to identify major dietary patterns in a specific study population is thus essential. However, relatively few studies have been conducted to examine the validity of dietary patterns derived from the FFQ using the factor analysis (Ambrosini et al, 2011;Beck et al, 2012;Hu et al, 1999;Khani et al, 2004;Okubo et al, 2010;Togo et al, 2003). To the best of our knowledge, only one study has been reported on the validity of dietary patterns from the FFQ among British women in early pregnancy (Crozier et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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

Loy

Mohamed

2013

International Journal of Food Sciences and Nutrition

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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.

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Section: Discussionsupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%