Reliability and relative validity of an FFQ for nutrients in the Tehran Lipid and Glucose Study
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Objective: To describe the relative validity and reliability of the FFQ used for assessing nutrient intakes of participants in the Tehran Lipid and Glucose Study (TLGS). Design: A total of 132 subjects (sixty-one males and seventy-one females) were included in the study. Dietary data were collected monthly by means of twelve 24 h dietary recalls (24hDR). Subjects completed two, 168-item semi-quantitative FFQ. Blood and urine samples were taken every season for measurement of plasma biomarkers and urinary N and K. Results: Mean age and BMI of the participants were 35·5 ( sd 16·8) years and 25·5 ( sd 5·2) kg/m 2 , respectively. The mean energy-adjusted and deattenuated correlation coefficients for overall nutrient intake between the 24hDR and FFQ2 were 0·44 and 0·37 in ≤35-year-olds and >35-year-olds, respectively, and for individual nutrients ranged from 0·24 to 0·71 in men (mean r = 0·53) and from 0·11 to 0·60 in women (mean r = 0·39). The mean energy-adjusted reliability coefficients varied from 0·48 in ≤35-year-olds to 0·65 in >35-year-olds, and ranged from 0·41 to 0·79 in men (mean r = 0·59) and from 0·39 to 0·74 in women (mean r = 0·60). The FFQ2 and 24hDR produced exact agreement rates ranging between 39·6 % and 68·3 % in men and between 39·6 % and 54·1 % in women. The ranges of questionnaire validity coefficients, with the sample correlation between the questionnaires and biochemical marker as the lower limit and the estimate obtained by the method of triads as the upper limit, were 0·21–0·56 (protein) and 0·37–0·61 (K). Conclusions: The FFQ developed for the TLGS has reasonable relative validity and reliability for nutrient intakes in Tehranian adults.
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Dietary intake was assessed using a validated 168-item food frequency questionnaire.
“Participants’ dietary intake was assessed using a validated 168-item food frequency questionnaire.”
From Cross-sectional study of the relationship between dietary inflammatory index and inflammatory hormonal and metabolic profiles in polycystic ovary syndrome (2025) · cites this paper as [33]
A validated semi-quantitative food frequency questionnaire (FFQ) with 168 food items was used to assess dietary intake.
“A validated semi-quantitative food frequency questionnaire (FFQ) with 168 food items was employed for the evaluation of dietary intakes [32].”
Usual dietary intakes were assessed using a validated 168-item Food Frequency Questionnaire.
“Usual dietary intakes were assessed using a validated 168-item Food Frequency Questionnaire (FFQ).”
From Association between healthy eating index-2015 scores and metabolic syndrome among Iranian women: a cross-sectional study (2024) · cites this paper as [23]
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Self-citation
- Authors
- Mirmiran, P., Hosseini Esfahani, F., Mehrabi, Y., Hedayati, M., & Azizi, F.
- Affiliations
- Research Institute for Endocrine Sciences (IR)
- Shahid Beheshti University of Medical Sciences (IR)
- Corresponding author
- Mirmiran, Parvin
- Venue
- Public Health Nutrition
- Publisher
- Cambridge University Press (CUP)
- Published
- 2009-10-07
- Volume
- 13
- Issue
- 5
- Pages
- 654-662
- ISSN
- 1368-9800 (ISSN-L)
- 1475-2727
- OpenAlex
- W1989046008
- Cited by
- 1,292
- References
- 45
- Citations by year
- 2026: 79 · 2025: 145 · 2024: 164 · 2023: 156 · 2022: 135 · 2021: 184 · 2020: 109 · 2019: 84 · 2018: 43 · 2017: 30 · 2016: 46 · 2015: 35 · 2014: 27 · 2013: 26 · 2012: 13
- FWCI
- 9.75
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Public Health Nutrition (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Shahid Beheshti University of Medical Sciences
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
- Social Sciences › Sociology and Political Science › Survey Methodology and Nonresponse
- Keywords
- food frequency questionnaire, dietary assessment, nutrient intake, 24-hour dietary recall, questionnaire validity, questionnaire reliability, plasma biomarkers, urinary nitrogen, urinary potassium, protein intake, sex differences, Tehran Lipid and Glucose Study
- MeSH terms
- Adult, Cardiovascular Diseases, Diet Surveys, Feeding Behavior, Female, Humans, Iran, Male, Nitrogen, Potassium, Surveys and Questionnaires, Mental Recall, Risk Factors, Seasons, Sensitivity and Specificity, Reproducibility of Results, Biomarkers, Body Mass Index, Metabolic Syndrome
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