ArticleNutrition journal2024
Validity and reproducibility of the PERSIAN Cohort food frequency questionnaire: assessment of major dietary patterns.
Article in Nutrition journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 20 citations in OpenAlex.
- Association of Pro-Inflammatory Diets With Increased Risk of Metabolic Dysfunction-Associated Steatohepatitis: Evidence From a Prospective Cohort Study.Food science & nutrition · 2026Article
- Association between healthy eating index and sleep quality and duration in older adults: findings from the NeLSA cohort Study, Iran.BMC nutrition · 2026Article
- Nutritional Changes and Contributing Factors in Iran: A Comprehensive Study From PERSIAN Cohort Study (2015-2017 and 2021-2023).Food science & nutrition · 2026Article
- Shift Work and Unhealthy Dietary Patterns: Evidence From the Shahedieh Cohort Study.Safety and health at work · 2026Article
- Composite dietary antioxidant index and risk of metabolic dysfunction - associated steatotic liver disease: evidence from a prospective cohort study.Nutrition & metabolism · 2026Article
- Association between hypertension awareness and preventive health behaviors among healthcare workers: evidence from the SHAHWAR study.BMC cardiovascular disorders · 2026Article
- The association between pro-inflammatory diet and incidence of hypertension: a prospective cohort study.Hypertension research : official journal of the Japanese Society of Hypertension · 2026Article
- First population-based study on non-communicable diseases and risk factors in northeastern Iran: Sabzevar cohort profile.BMJ open · 2026Article
- Inverse associations between the dietary diabetes risk reduction score and dietary phytochemical index with metabolic syndrome and its components: a cross-sectional analysis of the Fasa adult cohort study in rural Iran.BMC endocrine disorders · 2026Article
- Comparison of TyG indices and atherogenic index of plasma with hypertension in the PERSIAN Guilan cohort.Scientific reports · 2026Article
- Can Variations in the Diet Quality Index Over Five Years Improve Renal Function and Lipid Profiles Among Patients with Type 2 Diabetes Mellitus? Results from the Prospective Azar Cohort Study.Advanced biomedical research · 2026Article
- Association of surrogate indices of insulin resistance with hypertension: a cross-sectional analysis from PERSIAN Dena cohort study (PDCS).Scientific reports · 2025Article
- Mediating effects of physical activity, BMI, and dietary iron intake on the relationship between depression and chronic headaches.Scientific reports · 2025Article
- Cross-sectional and longitudinal associations between fatty liver index and kidney function using updated MASLD and CKD-EPI 2021 definitions: a population-based study with region-specific cutoffs.European journal of medical research · 2025Article
- Association of World Index for Sustainability and Health Score with metabolic syndrome in Iranian adults from the PERSIAN Dena cohort study.Scientific reports · 2025Article
- The association between cariogenic diet and dental caries in the Azar cohort population: a cross-sectional study.BMC public health · 2025Article
- Tracking the impact of dietary quality scores on metabolic health: Insights from the Azar Cohort on patients with type 2 diabetes mellitus.Health promotion perspectives · 2025Article
- Adherence to global diet quality score in relation to gastroesophageal reflux disease and flatulence in Iranian adults.BMC public health · 2025Article
- Article
- Adherence to combined healthy lifestyle and odds of metabolic syndrome in Iranian adults: the PERSIAN Dena cohort study.Scientific reports · 2025Article
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Authors and funding
15 authors at 9 institutions in 2 countries.
Funding
Abstract
backgroundDietary patterns, encompassing an overall view of individuals' dietary intake, are suggested as a suitable means of assessing nutrition's role in chronic disease development. The aim of this study was to evaluate the validity and reproducibility of a food frequency questionnaire (FFQ) designed for use in the Prospective Epidemiological Research Studies in IrAN (PERSIAN), by comparing major dietary patterns assessed by the FFQ with a reference method.
methodsStudy participants included men and women who enrolled in the PERSIAN Cohort Study at seven of the eighteen centers. These centers were chosen to include dietary variations observed among the different Iranian ethnic populations. Two FFQ were completed for each participant over a one-year study period (FFQ1 upon enrollment and FFQ2 at the end of the study), with 24 interviewer-administered 24-hour dietary recalls (24 h) being completed monthly in between. Spearman correlation coefficients (SCC) were used comparing FFQs 1 and 2 to the 24 h to assess validity, while FFQ1 was compared to FFQ2 to assess reproducibility of the questionnaire.
resultsThree major dietary patterns-Healthy, Low Protein/High Carb and Unhealthy-were identified, accounting for 70% of variance in the study population. Corrected SCC ranged from 0.31 to 0.61 in the validity and from 0.34 to 0.57 in reproducibility analyses, with the first two patterns, which accounted for over 50% of population variance, correlated at above 0.5 in both parameters, showing acceptable findings.
conclusionsThe PERSIAN Cohort FFQ is suitable for identification of major dietary patterns in the populations it is used for, in order to assess diet-disease relationships.
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