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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

MORONARI-DE OLIVEIRA-APRELINI, Carla et al. Development and validation of the food quality score in ELSA-Brasil. Nutr. Hosp. [online]. 2024, vol.41, n.1, pp.175-185.  Epub 07-Mar-2024. ISSN 1699-5198.  https://dx.doi.org/10.20960/nh.04598.

Introduction:

nutritional epidemiology seeks to understand the relationship between food consumption and the occurrence of diseases. During the COVID-19 pandemic, the Longitudinal Study of Adult Health (ELSA-Brasil) used a reduced Food Frequency Questionnaire (FFQ) to compare diet quality between cohort stages.

Objective:

to develop and validate an index created using a food quality score (FQS) using the FFQ of ELSA-Brasil.

Methods:

a cross-sectional study carried out between August 2020 and March 2021 with 4262 participants. For each frequency of consumption of healthy and unhealthy food markers, a score was given. Validity and reliability were tested using Pearson’s correlation, principal component analysis (PCA) and Cronbach’s alpha. Tests were performed to verify differences between individual characteristics and FQS.

Results:

the PCA indicated a total variability of 42.5 %. Women and individuals with higher age, physical activity and per capita income had a higher FQS, while those who reported higher consumption of alcohol and being smokers had a lower score. Cronbach’s alpha was 0.47.

Conclusion:

the FQS showed a satisfactory validity and reliability and was associated with socioeconomic and lifestyle data. Therefore, it is a useful tool for comparing dietary information, thus contributing to nutritional epidemiology.

Palabras clave : Healthy eating index; Diet; Food consumption; Lifestyle; COVID-19.

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