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Reproducibility and relative validity of a semi‑quantitative food and beverage frequency questionnaire for Spanish children aged 3 to 11 years: the COME‑Kids F&B‑FQ

Artículos   |   16 de octubre de 2023 Date   |  

Autores: Nancy Babio1,2,3 · Sara de Las Heras‑Delgado1,2,3 · Pilar De Miguel‑Etayo1,4 · Belén Pastor‑Villaescusa5  · Rosaura Leis1,6,7 · Tany E. Garcidueñas‑Fimbres1,2,3 · Alicia Larruy‑García4  · Santiago Navas‑Carretero1,8,9,10 · Olga Portoles1,11 · Katherine Flores‑Rojas5  · Rocío Vázquez‑Cobela1,6,7 · Sangeetha Shyam1,2,3 · María L. Miguel‑Berges1,4 · J. Alfredo Martínez8,9,10 · Pilar Codoñer‑Franch1,11 · Mercedes Gil‑Campos1,5 · Luis A. Moreno1,4 · Jordi Salas‑Salvadó1,2,3

Abstract A reliable food and beverage frequency questionnaire (F&B-FQ) to measure dietary intakes for children across Spain is currently unavailable. Thus, we designed and assessed the reproducibility and relative validity of a new F&B-FQ in 210 Spanish children aged 3–11 years. COME-Kids F&B-FQ contained 125 items to assess the usual diet intake in the past year among children. To explore the reproducibility, caregivers answered COME-Kids F&B-FQ twice over a 15-day period (±1 week). To evaluate the relative validity, estimates from a third COME-Kids F&B-FQ administered at 1 year of follow-up were compared with the mean estimates from 3-day dietary records (3d-DR) collected at baseline, 6 months, and after 1 year of follow-up. Reproducibility and relative validity of the COME-Kids F&B-FQ in estimating food groups and nutrients were assessed using Pearson (r) and intra-class (ICC) correlation coefficients. We used the kappa index to evaluate the agreement in repeat administrations or with the 3d-DR. We used Bland–Altman plots to identify bias across levels of intake. A total of 195 children (105 boys, 90 girls) completed the study. The reproducibility of data estimated from COME-Kids F&B-FQ was substantial with mean r and ICC being 0.65 and 0.64 for food groups and 0.63 and 0.62 for nutrients, respectively. Validation assessments comparing the FFQ and 3d-DRs showed r=0.36 and ICC=0.30 for food groups and r=0.29 and ICC=0.24 for nutrients. The mean agreement for food group reproducibility and relative validity was 86% and 65%, respectively. These estimates were 85% for reproducibility and 64% for relative validity in the case of nutrients. For reproducibility and relative validity, the overall mean kappa index was 63% and 37% for all food groups and 52% and 27% for nutrients, respectively. Bland–Altman plots showed no specific bias relating to the level of intake of nutrients and several food groups. Conclusion: COME-Kids F&B-FQ showed substantial reproducibility and acceptable relative validity to assess food and beverage intake in Spanish children aged 3 to 11 years. Most children were correctly classified in relation to the intake of food groups and nutrients, and misclassification was unlikely with reference to 3d-DR.

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https://sennutricion.org:80/es/2023/10/16/reproducibility-and-relative-validity-of-a-semi-quantitative-food-and-beverage-frequency-questionnaire-for-spanish-children-aged-3-to-11-years-the-come-kids-f-b-fq
/es/2023/10/16/reproducibility-and-relative-validity-of-a-semi-quantitative-food-and-beverage-frequency-questionnaire-for-spanish-children-aged-3-to-11-years-the-come-kids-f-b-fq