A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation
Abstract Objective: To describe the development and validation of the Nova FFQ (NovaFFQ) for Brazilian adults. Design: The 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 dat...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2025-01-01
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| Series: | Public Health Nutrition |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S1368980025000412/type/journal_article |
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| author | Evelyn Oliveira da Silva Frade Kamila Tiemann Gabe Caroline dos Santos Costa Daniela Neri Euridice Martínez-Steele Fernanda Rauber Josiane Steluti Renata Bertazzi Levy Maria Laura da Costa Louzada |
| author_facet | Evelyn Oliveira da Silva Frade Kamila Tiemann Gabe Caroline dos Santos Costa Daniela Neri Euridice Martínez-Steele Fernanda Rauber Josiane Steluti Renata Bertazzi Levy Maria Laura da Costa Louzada |
| author_sort | Evelyn Oliveira da Silva Frade |
| collection | DOAJ |
| description |
Abstract
Objective:
To describe the development and validation of the Nova FFQ (NovaFFQ) for Brazilian adults.
Design:
The 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.
Setting:
Nationwide Brazilian study, the NutriNet-Brasil cohort.
Participants:
There were 243 participants in the reproducibility analysis and 376 in the criterion validity analysis.
Results:
Strong 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).
Conclusions:
The 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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| format | Article |
| id | doaj-art-a8a9f8a6584840bab6dd4417d800e487 |
| institution | Kabale University |
| issn | 1368-9800 1475-2727 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Public Health Nutrition |
| spelling | doaj-art-a8a9f8a6584840bab6dd4417d800e4872025-08-20T03:52:56ZengCambridge University PressPublic Health Nutrition1368-98001475-27272025-01-012810.1017/S1368980025000412A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validationEvelyn Oliveira da Silva Frade0https://orcid.org/0000-0003-2382-3790Kamila Tiemann Gabe1https://orcid.org/0000-0001-5138-9552Caroline dos Santos Costa2https://orcid.org/0000-0002-3522-1546Daniela Neri3https://orcid.org/0000-0003-1397-9126Euridice Martínez-Steele4https://orcid.org/0000-0002-2907-3153Fernanda Rauber5https://orcid.org/0000-0001-9693-7954Josiane Steluti6https://orcid.org/0000-0001-7629-4189Renata Bertazzi Levy7https://orcid.org/0000-0001-5388-7002Maria Laura da Costa Louzada8https://orcid.org/0000-0002-3756-2301Postgraduate Program in Nutrition and Health, Department of Nutrition, School of Public Health, University of São Paulo (USP), São Paulo, Brazil Centre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, Brazil Department of Preventive Medicine, School of Medicine, University of Sao Paulo, Sao Paulo, BrazilPublic Policies and Collective Health Department, Health and Society Institute, Federal University of Sao Paulo, Santos, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, Brazil Department of Preventive Medicine, School of Medicine, University of Sao Paulo, Sao Paulo, BrazilCentre for Epidemiological Studies in Nutrition and Health, School of Public Health, University of São Paulo, São Paulo, Brazil Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil Abstract Objective: To describe the development and validation of the Nova FFQ (NovaFFQ) for Brazilian adults. Design: The 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. Setting: Nationwide Brazilian study, the NutriNet-Brasil cohort. Participants: There were 243 participants in the reproducibility analysis and 376 in the criterion validity analysis. Results: Strong 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). Conclusions: The 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. https://www.cambridge.org/core/product/identifier/S1368980025000412/type/journal_articleDietary intakeNova systemSurveys and questionnairesNutritional epidemiology |
| spellingShingle | Evelyn Oliveira da Silva Frade Kamila Tiemann Gabe Caroline dos Santos Costa Daniela Neri Euridice Martínez-Steele Fernanda Rauber Josiane Steluti Renata Bertazzi Levy Maria Laura da Costa Louzada A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation Public Health Nutrition Dietary intake Nova system Surveys and questionnaires Nutritional epidemiology |
| title | A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation |
| title_full | A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation |
| title_fullStr | A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation |
| title_full_unstemmed | A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation |
| title_short | A novel FFQ for Brazilian adults based on the Nova classification system: development, reproducibility and validation |
| title_sort | novel ffq for brazilian adults based on the nova classification system development reproducibility and validation |
| topic | Dietary intake Nova system Surveys and questionnaires Nutritional epidemiology |
| url | https://www.cambridge.org/core/product/identifier/S1368980025000412/type/journal_article |
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