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Understanding the impact of meals on diet quality and health: food intake, lifestyle, nutritional status and cardiovascular risk factors

Grant number: 16/10484-3
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): January 01, 2017
Effective date (End): February 15, 2018
Field of knowledge:Health Sciences - Nutrition
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Dirce Maria Lobo Marchioni
Grantee:Bartira Mendes Gorgulho
Host Institution: Faculdade de Saúde Pública (FSP). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Although some researches has already found associations between meals consumption and nutritional status, and also observed that changes in the composition of a single meal is enough to change the postprandial and inflammatory response in individuals, there is no consensus on the importance of studying meals associations with health outcomes, considering that the daily food intake could be enough. In this context, combining hypothesis driven methods, data driven methods and hybrid methods, allowing a holistic view of diet and health relationship, this study aims to evaluate the impact of each meal (breakfast, lunch and dinner) in the overall dietary quality, considering lifestyle, nutritional status, blood pressure, blood glucose, and lipid and inflammatory profile of adults living in São Paulo. Structural equation models will perform the association between the overall dietary quality, estimated by the Health Eating Index adapted to the Brazilian population, with breakfast, lunch and dinner patterns, estimated by factor analysis, a multivariate data analysis, combining statistical methods of factor analysis and multiple regression. Finally, to compare the impact of each meal (breakfast, lunch and dinner) in the overall dietary quality will be applied a classification algorithm (decision tree). (AU)

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