Validation and reproducibility of a culturally specific Food Frequency Questionnaire (FFQ) for Malaysian Punjabis

Barakatun-Nisak Mohd. Yusof, . and Hamid Jan Jan Mohamed, . and Yim Hip Seng, . and Satvinder Kaur, . and Rohana Abdul Jalil, . Validation and reproducibility of a culturally specific Food Frequency Questionnaire (FFQ) for Malaysian Punjabis. pp. 245-255. ISSN 1394-035X

Introduction: Validation of a culturally specific FFQ is important in assessing habitual dietary intake of ethnic population groups. This study aimed to assess the validity and reproducibility of a FFQ developed specifically for determining the dietary intake of Malaysian Punjabis. Methods: Subjects were approached through voluntary participation for the development and validation phase in the Klang Valley. A list of foods consumed by participants (n100) was documented through a 3-day dietary recall. The validation process was conducted by verifying the developed FFQ against another group of Punjabi adult volunteers (n101) who kept a 2-day dietary record. Macronutrients dietary fibre fatty acids cholesterol three types of minerals (calcium sodium iron) and four vitamins (B12 folate C A) were included in the analysis. Reproducibility was shown with intraclass correlation (ICC) values between FFQ1 vs FFQ2 that were administered 6 months apart among 32 participants. Results: In the validation study the FFQ1 was found to have over-estimated almost all nutrients compared to those in the dietary records. The Spearman correlation coefficients for energy carbohydrate protein and fat intake based on the FFQ1 and 2-day dietary records were 0.54 0.38 0.47 and 0.31 respectively. The classification into the same and adjacent quartiles was between 61- 84 for the nutrients consumed. Bland Altman plots showed relatively good agreement (between 2 standard deviation) for both the dietary methods used. Reproducibility analysis of ICC (FFQ1 vs FFQ2) was between 0.46-0.76 for macronutrients and 0.20-0.92 for micronutrients. Conclusion: The developed FFQ could be used as a valid tool for assessing dietary intake of Malaysian Punjabis as it showed a moderate agreement with dietary record for intake of energy and macronutrients.

Full text available from: Official URL: http://www.nutriweb.org.my/mjn/publication/22-2/g....

Abstract

Introduction: Validation of a culturally specific FFQ is important in assessing habitual dietary intake of ethnic population groups. This study aimed to assess the validity and reproducibility of a FFQ developed specifically for determining the dietary intake of Malaysian Punjabis. Methods: Subjects were approached through voluntary participation for the development and validation phase in the Klang Valley. A list of foods consumed by participants (n100) was documented through a 3-day dietary recall. The validation process was conducted by verifying the developed FFQ against another group of Punjabi adult volunteers (n101) who kept a 2-day dietary record. Macronutrients dietary fibre fatty acids cholesterol three types of minerals (calcium sodium iron) and four vitamins (B12 folate C A) were included in the analysis. Reproducibility was shown with intraclass correlation (ICC) values between FFQ1 vs FFQ2 that were administered 6 months apart among 32 participants. Results: In the validation study the FFQ1 was found to have over-estimated almost all nutrients compared to those in the dietary records. The Spearman correlation coefficients for energy carbohydrate protein and fat intake based on the FFQ1 and 2-day dietary records were 0.54 0.38 0.47 and 0.31 respectively. The classification into the same and adjacent quartiles was between 61- 84 for the nutrients consumed. Bland Altman plots showed relatively good agreement (between 2 standard deviation) for both the dietary methods used. Reproducibility analysis of ICC (FFQ1 vs FFQ2) was between 0.46-0.76 for macronutrients and 0.20-0.92 for micronutrients. Conclusion: The developed FFQ could be used as a valid tool for assessing dietary intake of Malaysian Punjabis as it showed a moderate agreement with dietary record for intake of energy and macronutrients.

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Item Type:	Article
AGROVOC Term:	Ethnic groups
AGROVOC Term:	Diet
AGROVOC Term:	Food intake
AGROVOC Term:	Food consumption
AGROVOC Term:	Food
AGROVOC Term:	Calcium
AGROVOC Term:	Cholesterol
AGROVOC Term:	Fats
AGROVOC Term:	Fatty acids
AGROVOC Term:	Dietary fibres
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:53
URI:	http://webagris.upm.edu.my/id/eprint/7868

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