ArticlePublic health nutrition2021
Validation and reproducibility of a FFQ focused on pregnant women living in Northeastern Brazil.
Article in Public health nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Validation of a food frequency questionnaire for pregnant Swedish women in the NorthPop Birth Cohort Study against repeated 24-hour recalls.Nutrition journal · 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
- Validation of a Food Frequency Questionnaire for Assessing Fatty Acid Intake in Latvian Pregnant Women.Nutrients · 2025Article
- Article
- Associations of Dietary Calcium and Phosphorus With Vascular and Valvular Calcification: The ARIC Study.JACC. Advances · 2024Article
- Development and Validation of a Food Frequency Questionnaire for Evaluating the Nutritional Status of Patients with Cancer.Nutrients · 2023Article
- Validation and calibration of the Food Consumption Frequency Questionnaire for pregnant women.Sao Paulo medical journal = Revista paulista de medicina · 2023Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe aim of the current study is to assess the validity and reproducibility of a FFQ focused on pregnant women living in Northeastern Brazil.
designThree 24-hour-dietary recalls (24 hR) and two FFQ were applied at 15-d intervals between research stages in order to confirm the validity and reproducibility of the FFQ. Validity assessment was based on Pearson's correlation coefficient (PCC) or Spearman's correlation coefficient (SCC) between FFQ and the mean of three 24 hR (the 24 hR was used as reference standard), whereas reproducibility assessment was based on the intraclass correlation coefficient (ICC) among FFQ, and P < 0·05 was set as significance level.
settingPublic health network of a capital city in Northeastern Brazil.
participantsOverall, 100 pregnant women were included in the study.
resultsThe PCC or SCC adopted in the validity analysis recorded the recommended values (from 0·4 and 0·7) for energy (0·44; P < 0·001), carbohydrate (0·40; P < 0·001), vitamins B2 (0·40; P < 0·001), B5 (0·40; P < 0·001), E (0·47; P < 0·001), B12 (0·48; P < 0·001), phosphorus (0·92; P < 0·001), Mg (0·81; P < 0·001), Se (0·70; P < 0·001), cholesterol (0·64; P < 0·001), saturated (0·76; P < 0·001), polyunsaturated (0·73; P < 0·001) and monounsaturated fats (0·87; P < 0·001) and fibres (0·77; P < 0·001). Mg (0·72; P < 0·001), Fe (0·65; P < 0·001), lipid (0·56; P < 0·001) and energy (0·55; P < 0·001) presented ICC within the recommended reproducibility values.
conclusionsThe FFQ developed in the current study is a useful tool to assess the usual food intake of pregnant women.
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