ArticlePublic health nutrition2025
A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation.
Article in Public health nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Reproducibility and Validity of a Nova-Based Food Frequency Questionnaire in Older Italian Adults: The NFFQ-Elderly.Nutrients · 2026Article
- Ultra-Processed Foods and the Cardiovascular-Kidney-Metabolic Continuum: Integrating Epidemiological, Multi-Omics, and Translational Evidence.Nutrients · 2026Review
- From concept to measurement: initial validation of the Ultra-Processed Food Consumption Scale.Eating and weight disorders : EWD · 2026Article
- The ultra-processed foods paradox: When classification overlooks nutritional complexity.Public health nutrition · 2026Article
- Food Frequency Questionnaires Validated in Brazil: A Scoping Review.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026Article
- Development and Validation of a New Tool for Assessing the Intake of Ultra-Processed Foods in Adult Population: GR-UPFAST.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2025Article
- Association of ultra-processed food patterns with overweight and obesity in the German health interview and examination survey for children and adolescents (KiGGS): a longitudinal study.BMC public health · 2025Article
- Application of the Nova food classification to the 2017-2018 Household Budget Survey: monitoring adherence to the recommendations of the Dietary Guidelines for the Brazilian Population.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025Article
- QuestNova: innovation in food consumption assessment according to industrial processing.Revista de saude publica · 2024Article
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9 authors.
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Abstract
objectiveTo describe the development and validation of the Nova FFQ (NovaFFQ) for Brazilian adults.
designThe NovaFFQ is a self-administered, semi-quantitative questionnaire. The food list includes the most consumed foods and drinks based on 2017-2018 National Food Intake Survey data. We identified and differentiated foods that could be classified into multiple Nova groups. We assessed reproducibility and criterion validity using the percent energy contribution of each Nova group. Reproducibility was assessed by comparing NovaFFQ estimates on two occasions. Criterion validity was assessed by comparing the first NovaFFQ estimate against the mean of two Nova24h recalls. We estimated the intraclass correlation coefficients (ICC) for both analyses and assessed the agreement of classification into quintiles using the prevalence-and-bias-adjusted kappa coefficients for criterion validity analysis.
settingNationwide Brazilian study, the NutriNet-Brasil cohort.
participantsThere were 243 participants in the reproducibility analysis and 376 in the criterion validity analysis.
resultsStrong reproducibility was observed, with an ICC of 0·91 for all the Nova groups. Criterion validity showed a moderate ICC, ranging from 0·61 for processed and ultra-processed foods (UPF) to 0·65 for unprocessed and minimally processed foods. Substantial agreement in ranking individuals across quintiles was found, as indicated by the prevalence-and-bias-adjusted kappa (PABAK = 0·74, 0·72, 0·70 and 0·73 for unprocessed and minimally processed foods, culinary ingredients and processed and ultra-processed foods, respectively).
conclusionsThe NovaFFQ is a valid instrument for assessing food consumption by processing level, especially for discriminating individuals according to the magnitude of consumption in all Nova groups.
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