Validade convergente e análise de invariância de uma escala de adesão a práticas alimentares recomendadas pelo Guia Alimentar para a População Brasileira

Revista Brasileira de Epidemiologia

article

Gabe, Kamila Tiemann¹  Jaime, Patricia Constante¹ 

[1] Universidade de São Paulo

关键词: Food guide;    Food behaviour;    Psychometrics;    Validation study;   

DOI  :  10.1590/1980-549720220009

学科分类：社会科学、人文和艺术（综合）

来源: SciELO

【 摘 要 】

Objective:To analyze the convergent validity and invariance of a scale to measure adherence to eating practices recommended by the Dietary Guidelines for the Brazilian Population. Methods:A subsample (n=1309) of the NutriNet-Brasil cohort (self-filled web-based study) answered the 24-items scale based on the Guide, as well as socioeconomic and dietary questionnaires. The score in the scale (eGuia) was compared by Spearman’s correlation with scores of fresh and minimally processed foods (eG1) and ultra-processed foods (eG411). The model was invariant when the goodness-of-fit indices varied within acceptable ranges compared to the previous level. Results:Participants were on average 39 years old (sd=13.7), 53% were women and 69% had more than 11 years of education. Correlations between eGuia and eG1, and between eGuia and eG4 were 0.56 and -0.51 (p<0.001), respectively. In all sociodemographic groups, the goodness-of-fit indices varied within acceptable ranges. Conclusion:The correlations show that the eating practices measured by the scale are aligned with a healthy food consumption, showing its convergent validity. In this sample, the scale measured the same dimensions, showed equivalence of items’ factor loadings, and generated comparable scores between subgroups of sex, age, and education.

【 授权许可】

CC BY-NC