Validity and Reproducibility of a Food Frequency Questionnaire to Assess Nutrients Intake of Pregnant Women in the South-East of Spain
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AuthorHinojosa Nogueira, Daniel José; Romero Molina, Desiré; Giménez Asensio, María José; González Alzaga, Beatriz; López Flores, Inmaculada; Pastoriza de la Cueva, Silvia; Rufián Henares, José Ángel; Hernández Jérez, Antonio Francisco; Lacasaña, Marina
Pregnant womenNutritionIntakeFood Frequency Questionnaire (FFQ)24-h dietary recallsSpain
Hinojosa-Nogueira, D.; Romero-Molina, D.; Giménez-Asensio, M.J.; Gonzalez-Alzaga, B.; Lopéz-Flores, I.; Cueva, S.P.d.l.; Rufián-Henares, J.Á.; Hernández, A.F.; Lacasaña, M. Validity and Reproducibility of a Food Frequency Questionnaire to Assess Nutrients Intake of Pregnant Women in the South-East of Spain. Nutrients 2021, 13, 3032. https:// doi.org/10.3390/nu13093032
SponsorshipInstitute of Health Carlos III (PI13/01559), including The European Regional Development Fund (FEDER); Regional Health Council of Andalusia (Spain) (PI045-2014); Plan propio de Investigación y Transferencia of the University of Granada under the program “Intensificación de la Investigación, modalidad B”.
Proper nutrition during pregnancy is pivotal to maintain good health for the child and the mother. This study evaluates the reproducibility and validity of a food frequency questionnaire (FFQ) designed to assess nutrient intake during pregnancy in the GENEIDA (Genetics, Early life Environmental Exposures and Infant Development in Andalusia) prospective birth cohort study. In addition, the nutrient intake was estimated and then compared with European guidelines and other studies. Diet information was collected from 690 pregnant women using a FFQ administered at two periods of pregnancy (used for the reproducibility study) and 24-h dietary recall (for the validity study). Statistical approaches included Spearman’s correlation coefficient and percentage agreement, classifying women into the same or adjacent quintiles to assess reproducibility, and limits of agreement (LoA) to evaluate validity. In the study of reproducibility, significant correlations for nutrients adjusted for total energy had an average of 0.417. Moreover, the percentage of subjects classified in the same quintile for nutrient intakes were above 66%. In the validation study, the significant correlation for nutrients adjusted for total energy had an average of 0.272. Nevertheless, the percentage of results in the LoA was above 94%. Our results were similar to other studies suggesting that the FFQ used is a valid tool of collect dietary intakes for South-East Spanish pregnant women.