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Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE

Introduction: The aim of this study was to assess the validity and reproducibility of a food frequency questionnaire (FFQ) specifically developed for the assessment of riboflavin intake among Malaysian women in Selangor. Methods: The study was carried out in Universiti Putra Malaysia (UPM), which...

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Main Authors: How, Ru En, Loh, Su Peng, Khor, Geok Lin
Format: Article
Language:English
Published: 2019
Online Access:http://psasir.upm.edu.my/id/eprint/82704/1/Work-related%20Road%20Traffic%20Crash%20Is%20Return%20to%20Work%20Rate%20After%20Rehabilitation%20Better%20With%20Outcome-focused%20Intervention.pdf
http://psasir.upm.edu.my/id/eprint/82704/
https://medic.upm.edu.my/upload/dokumen/2019041008211606_MJMHS_Vol_15_SP1.pdf
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spelling my.upm.eprints.827042021-12-03T02:49:54Z http://psasir.upm.edu.my/id/eprint/82704/ Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE How, Ru En Loh, Su Peng Khor, Geok Lin Introduction: The aim of this study was to assess the validity and reproducibility of a food frequency questionnaire (FFQ) specifically developed for the assessment of riboflavin intake among Malaysian women in Selangor. Methods: The study was carried out in Universiti Putra Malaysia (UPM), which consisted of 204 healthy women (102 Chinese and 102 Malay) aged between 19 and 45 years. The FFQs were interviewer-administered, which were completed twice; at the beginning of the study (FFQ-1) and two weeks thereafter (FFQ-2). A two-day 24-hour dietary recall (24DR) was interviewer-administered as the standard criteria method. Data were analyzed using Wilcoxon signed ranks test, Spearman correlation coefficient (SCC), intra-class correlation coefficient (ICC) and Bland-Altman plots to determine the validity and reproducibility. Results: Median riboflavin intake derived from 24DRs was significantly higher than FFQ-2 (p<0.01). Both FFQ-1 and FFQ-2 correlated significantly (p<0.01) with 24DRs with r-value of 0.264 and 0.227, respectively. As for reproducibility between FFQs, SCC value was statistically significant (p<0.01) at 0.545 whereby ICC value was 0.752, which considered as good. Most data points fell between the limits of agreements and were found closer to the horizontal line in the middle. However, the plots showed no linear trend existed between FFQ and 24DR over the range of mean riboflavin intake. Conclusion: The newly developed FFQ were found to be valid and relatively reproducible in the assessment of riboflavin intake among Malaysian women in Selangor. 2019-04 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/82704/1/Work-related%20Road%20Traffic%20Crash%20Is%20Return%20to%20Work%20Rate%20After%20Rehabilitation%20Better%20With%20Outcome-focused%20Intervention.pdf How, Ru En and Loh, Su Peng and Khor, Geok Lin (2019) Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE. Malaysian Journal of Medicine and Health Sciences, 15 (SP1). pp. 40-46. ISSN ESSN : 2636-9346 https://medic.upm.edu.my/upload/dokumen/2019041008211606_MJMHS_Vol_15_SP1.pdf
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Introduction: The aim of this study was to assess the validity and reproducibility of a food frequency questionnaire (FFQ) specifically developed for the assessment of riboflavin intake among Malaysian women in Selangor. Methods: The study was carried out in Universiti Putra Malaysia (UPM), which consisted of 204 healthy women (102 Chinese and 102 Malay) aged between 19 and 45 years. The FFQs were interviewer-administered, which were completed twice; at the beginning of the study (FFQ-1) and two weeks thereafter (FFQ-2). A two-day 24-hour dietary recall (24DR) was interviewer-administered as the standard criteria method. Data were analyzed using Wilcoxon signed ranks test, Spearman correlation coefficient (SCC), intra-class correlation coefficient (ICC) and Bland-Altman plots to determine the validity and reproducibility. Results: Median riboflavin intake derived from 24DRs was significantly higher than FFQ-2 (p<0.01). Both FFQ-1 and FFQ-2 correlated significantly (p<0.01) with 24DRs with r-value of 0.264 and 0.227, respectively. As for reproducibility between FFQs, SCC value was statistically significant (p<0.01) at 0.545 whereby ICC value was 0.752, which considered as good. Most data points fell between the limits of agreements and were found closer to the horizontal line in the middle. However, the plots showed no linear trend existed between FFQ and 24DR over the range of mean riboflavin intake. Conclusion: The newly developed FFQ were found to be valid and relatively reproducible in the assessment of riboflavin intake among Malaysian women in Selangor.
format Article
author How, Ru En
Loh, Su Peng
Khor, Geok Lin
spellingShingle How, Ru En
Loh, Su Peng
Khor, Geok Lin
Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
author_facet How, Ru En
Loh, Su Peng
Khor, Geok Lin
author_sort How, Ru En
title Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
title_short Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
title_full Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
title_fullStr Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
title_full_unstemmed Validity and Reproducibility of an Interviewer-administered Food Frequency Questionnaire for the Assessment of Riboflavin Intake in Malaysian Women in Selangor DUPLICATE
title_sort validity and reproducibility of an interviewer-administered food frequency questionnaire for the assessment of riboflavin intake in malaysian women in selangor duplicate
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/82704/1/Work-related%20Road%20Traffic%20Crash%20Is%20Return%20to%20Work%20Rate%20After%20Rehabilitation%20Better%20With%20Outcome-focused%20Intervention.pdf
http://psasir.upm.edu.my/id/eprint/82704/
https://medic.upm.edu.my/upload/dokumen/2019041008211606_MJMHS_Vol_15_SP1.pdf
_version_ 1718927789832273920
score 13.211869

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