Banca de DEFESA: LAYANNE CRISTINI MARTIN SOUSA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : LAYANNE CRISTINI MARTIN SOUSA
DATE: 30/01/2025
TIME: 14:00
LOCAL: Plataforma Google-Meet link https://meet.google.com/tde-jeoq-mey
TITLE:

Food environments and their impact on the promotion of adequate and healthy food.

KEY WORDS:

Access to Healthy Food. Food Security. Food Guides. Health Promotion. Health Policy.

PAGES: 159
BIG AREA: Ciências da Saúde
AREA: Saúde Coletiva
SUBÁREA: Epidemiologia
SUMMARY:

Introduction: The theme of food environments is a growing focus in research both in Brazil and worldwide. A comprehensive understanding of its dimensions and potential influences on the promotion of adequate and healthy diets for the population, in accordance with national food guidelines, is of paramount importance, particularly within the local context. Objective: The aim of this study is to understand the food environments in the Natal/RN and their relations with the promotion of adequate and healthy eating according to the population's eating practices and the recommendations of the Food Guide for the Brazilian Population (FGBP). Methods: The thesis was prepared using different methods organized into three sections: 1) A methodological study was conducted to ascertain the applicability of the FGBP adherence scale as a marker of healthy eating practices. This study compared the Food Guide adherence scale with the scale weighted by the level of adherence of the study population, using statistics such as the ROC curve and the Kappa test.2) A cross-sectional study was performed to examine the relations between the food environments (food deserts and swamps) of Natal/RN and adherence to the FGBP. Multiple linear regression analysis was conducted using a "backward stepwise" approach to ascertain the relations between the variables of interest. A methodological study was undertaken to develop an instrument for evaluating the food environment of popular restaurants, taking into account the recommendations of the FGBP and the legislation of the Popular Restaurants Program. The instrument was evaluated by a panel of experts using a checklist for content validity, considering the Content Validity Index (CVI). Two rounds of evaluation were carried out, and the practical relevance and clarity of language of the instrument's items were analyzed. Results: the Food Guide adherence scale exhibited an accuracy of 98.7% (AUC = 0.987 and p<0.001; 95%CI 0.97 9-0.995) was observed for the new weighted indicator to correctly classify the individual in terms of their adherence to the FGBP, with almost perfect agreement between the scales (Kappa = 0.90; p<0.001). 2) The cross-sectional study on food environments and adherence to the FGBP demonstrated that residing in a food desert leads to a reduction in the adherence score to the Guide by 2.41 (p=0.014), irrespective of income, age, and gender; and a reduction in the adherence score by 1.39 (p=0.006) when considering practices contrary to the FGBP recommendations. The association between food swamps and FGBP adherence score was not statistically significant (p = 0.886).3) With regard to the study on the instrument developed, it was found that of the 46 checklist items assessed for practical relevance in the first round by the panel of experts, 6 were excluded for having a CVI < 0.8. The remaining 40 items were assessed for clarity of language, and of these, 24 needed to be revised for having a CVI < 0.8. The experts also suggested adding 20 additional items to the instrument. Both the revised and additional items were assessed for clarity of language in the second round of the panel and obtained CVI ≥0.8. Conclusions: The application of the FGBP adherence scale to the Brazuca Natal Study population has yielded results consistent with the aspects proposed in its original scale. This suggests that the instrument possesses adequate discriminatory power in measuring the dietary practices of the study population. The study demonstrated an association between adherence to the Food Guide and food deserts, indicating that residing in a food desert is associated with reduced adherence to a healthy diet. The instrument developed to assess food environments within the scope of Popular Restaurants demonstrated satisfactory content validity, necessitating studies to validate its applicability.

COMMITTEE MEMBERS:
Interna - 2149611 - CLELIA DE OLIVEIRA LYRA
Interna - 3885543 - SAIONARA MARIA AIRES DA CAMARA
Externo ao Programa - 2842635 - FABIO RESENDE DE ARAUJO - UFRNExterna à Instituição - DANIELA SILVA CANELLA - UERJ
Externa à Instituição - MARIA CECÍLIA ROCHA