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Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults.
Nutrients. 2020 Feb 27; 12(3)N

Abstract

There is no recent validated short food frequency questionnaire (FFQ) for use in NewZealand (NZ) adults. This study aimed to evaluate the relative validity and reproducibility of a shortFFQ in free-living NZ adults aged 30-59 years. A 57-item, semi-quantitative FFQ was developedand pre-tested. During a 12-month study period the FFQ was administrated twice with a 9-monthinterval between administrations. Four two-day diet records were collected at months 0, 3, 6, and 9and a blood sample was taken at month 9. Spearman correlations were used to evaluate the validityof the FFQ with the eight-day diet records and selected biomarkers. Cross-classification analysisand the Bland-Altman method were used to assess the agreement between the FFQ and the dietrecord. Reproducibility over nine months was assessed using intra-class correlations. A total of 132males and females completed both FFQs, the eight-day diet record, and provided a blood sample.The highest energy-adjusted correlation coefficients were observed for alcohol (0.81), cholesterol(0.61), and carbohydrate (0.61), with the lowest for sodium (0.29), thiamin (0.33), and niacinequivalents (0.34). More than three quarters of the participants were correctly classified into thesame or adjacent quartile for most nutrients, with a low proportion of participants being grosslymisclassified (< 10%). For most nutrients, the limits of agreement from the Bland-Altman analyseswere between 50% and 250%. A positive correlation was observed between dietary intakes andplasma biomarkers for all selected nutrients. The FFQ showed moderate to good reproducibility,with almost all reliability coefficients ranging from 0.60 to 0.80. This short FFQ was shown to validlyand reliably rank individuals by their habitual intake of most major nutrients, indicating that theFFQ will offer a time-efficient way to assess the nutrient intake of NZ adults in future research.

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Authors+Show Affiliations

Sam CHY
Department of Human Nutrition, University of Otago, PO Box 56, Dunedin, New Zealand.
Skidmore P
Department of Human Nutrition, University of Otago, PO Box 56, Dunedin, New Zealand. Department of Medicine, University of Otago, PO Box 4345, Christchurch, New Zealand.
Skeaff S
Department of Human Nutrition, University of Otago, PO Box 56, Dunedin, New Zealand.
Wall C
Discipline of Nutrition and Dietetics, University of Auckland, Private Bag 92019, New Zealand.
Bradbury KE
National Institute for Health Innovation, School of Population Health, University of Auckland,Private Bag 92019, New Zealand.
Parackal S
Department of Social and Preventive Medicine, University of Otago, PO Box 56, Dunedin, New Zealand.

MeSH

AdultDiet RecordsDiet SurveysEnergy IntakeFemaleHumansMaleMiddle AgedNew ZealandNutrition AssessmentReproducibility of ResultsSurveys and Questionnaires

Pub Type(s)

Clinical Trial
Journal Article

Language

eng

PubMed ID

32120797

Citation

Sam, Cecilia Ho Yan, et al. "Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults." Nutrients, vol. 12, no. 3, 2020.
Sam CHY, Skidmore P, Skeaff S, et al. Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults. Nutrients. 2020;12(3).
Sam, C. H. Y., Skidmore, P., Skeaff, S., Wall, C., Bradbury, K. E., & Parackal, S. (2020). Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults. Nutrients, 12(3). https://doi.org/10.3390/nu12030619
Sam CHY, et al. Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults. Nutrients. 2020 Feb 27;12(3) PubMed PMID: 32120797.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relative Validity and Reproducibility of a Short FoodFrequency Questionnaire to Assess Nutrient Intakesof New Zealand Adults. AU - Sam,Cecilia Ho Yan, AU - Skidmore,Paula, AU - Skeaff,Sheila, AU - Wall,Clare, AU - Bradbury,Kathryn E, AU - Parackal,Sherly, Y1 - 2020/02/27/ PY - 2020/01/29/received PY - 2020/02/20/revised PY - 2020/02/24/accepted PY - 2020/3/4/entrez PY - 2020/3/4/pubmed PY - 2020/12/15/medline KW - Adults KW - Dietary assessment KW - Food frequency questionnaire KW - New Zealand KW - Nutrient intake KW - Reproducibility KW - Short food frequency questionnaire KW - Validity JF - Nutrients JO - Nutrients VL - 12 IS - 3 N2 - There is no recent validated short food frequency questionnaire (FFQ) for use in NewZealand (NZ) adults. This study aimed to evaluate the relative validity and reproducibility of a shortFFQ in free-living NZ adults aged 30-59 years. A 57-item, semi-quantitative FFQ was developedand pre-tested. During a 12-month study period the FFQ was administrated twice with a 9-monthinterval between administrations. Four two-day diet records were collected at months 0, 3, 6, and 9and a blood sample was taken at month 9. Spearman correlations were used to evaluate the validityof the FFQ with the eight-day diet records and selected biomarkers. Cross-classification analysisand the Bland-Altman method were used to assess the agreement between the FFQ and the dietrecord. Reproducibility over nine months was assessed using intra-class correlations. A total of 132males and females completed both FFQs, the eight-day diet record, and provided a blood sample.The highest energy-adjusted correlation coefficients were observed for alcohol (0.81), cholesterol(0.61), and carbohydrate (0.61), with the lowest for sodium (0.29), thiamin (0.33), and niacinequivalents (0.34). More than three quarters of the participants were correctly classified into thesame or adjacent quartile for most nutrients, with a low proportion of participants being grosslymisclassified (< 10%). For most nutrients, the limits of agreement from the Bland-Altman analyseswere between 50% and 250%. A positive correlation was observed between dietary intakes andplasma biomarkers for all selected nutrients. The FFQ showed moderate to good reproducibility,with almost all reliability coefficients ranging from 0.60 to 0.80. This short FFQ was shown to validlyand reliably rank individuals by their habitual intake of most major nutrients, indicating that theFFQ will offer a time-efficient way to assess the nutrient intake of NZ adults in future research. SN - 2072-6643 UR - https://www.unboundmedicine.com/medline/citation/32120797/Relative_Validity_and_Reproducibility_of_a_Short_FoodFrequency_Questionnaire_to_Assess_Nutrient_Intakesof_New_Zealand_Adults_ DB - PRIME DP - Unbound Medicine ER -