biostudies-literatureBabio NUniversitat Rovira i VirgiliICREA Academia programSpanish Danone Institute and CIBEROBN agreementDepartamento de Educación, Gobierno de NavarraSpanish Danone Institute and CIBEROBN agreementGeneralitat Valenciana5577-5589https://www.ebi.ac.uk/biostudies/studies/S-EPMC10746573biostudies-literatureUnknown182(12)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 estimaEuropean journal of pediatricsReproducibility 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.PMC10746573PROMETEO 21/2021OBN18PE050000-RES1-2020-000338Babio NMiguel-Berges MLLeis RVazquez-Cobela RMoreno LAGil-Campos MSalas-Salvado JMartinez JADe Miguel-Etayo PNavas-Carretero Sde Las Heras-Delgado SPastor-Villaescusa BFlores-Rojas KShyam SPortoles OGarciduenas-Fimbres TELarruy-Garcia ACodoner-Franch PfalseReproducibility 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.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 estima2023-01-01T00:00:00Z2023 Dec2026-06-03T09:41:05.683Z2025-04-04T14:13:37.365ZS-EPMC107465733779844610.1007/s00431-023-05220-9