Development and testing of a scale to evaluate diet according to the recommendations of the Dietary Guidelines for the Brazilian Population.
Public Health Nutr
; 22(5): 785-796, 2019 04.
Article
em En
| MEDLINE
| ID: mdl-30744711
OBJECTIVE: To develop and test a scale for healthy eating practices measurement according to the Dietary Guidelines for the Brazilian Population recommendations. DESIGN: Methodological study. The current Brazilian food-based dietary guideline highlights the importance of choosing foods, combining foods to create meals and modes of eating. These recommendations formed the main domains of the scale and served as a basis for the development of ninety-six items, each with a 4-point Likert response option. Content and face validity were tested. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed to determine construct validity. Internal consistency was determined using α and ω coefficients, and reproducibility was tested using test-retest. SETTING: Brazil.ParticipantsA ten-member expert panel was used to assess content validity. Adults aged 18-60 years were included in the face validity (n 20), EFA (n 352), CFA and reliability tests (n 900). RESULTS: Of the ninety-six initial items, twenty-four were excluded and fifty-five were reworded following the content and face validations. EFA detected a four-domain structure (Food choices, Modes of eating, Planning and Domestic organization), which explained 41 % of the variance. CFA led to a final twenty-four-item model with acceptable goodness-of-fit indices and good reliability measures (α=0·77; ω=0·83). Intraclass correlation coefficient for the total score (0·82) and analysis of the Bland-Altman plot suggested good reproducibility of the scale. CONCLUSIONS: The scale presents good evidence of validity and reliability. This innovative study created a useful tool for evaluation of the impact of the Dietary Guidelines for the Brazilian Population.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Características da Família
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Inquéritos e Questionários
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Política Nutricional
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Comportamento do Consumidor
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Dieta
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Preferências Alimentares
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Valor Nutritivo
Tipo de estudo:
Guideline
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Prognostic_studies
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Qualitative_research
Limite:
Adolescent
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Adult
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Female
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Humans
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Male
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Middle aged
País/Região como assunto:
America do sul
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Brasil
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Europa
Idioma:
En
Revista:
Public Health Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
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SAUDE PUBLICA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido