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Publication
Hábitos alimentares e nutrição em crianças e jovens: modelação estatística de associações e determinantes
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| 2.11 MB | Adobe PDF |
Abstract(s)
Este estudo pretende contribuir para avaliação dos hábitos alimentares das crianças
e jovens através do comportamento alimentar diário utilizando métodos estatísticos. No
âmbito de um projeto promovido pela a Associação Portuguesa Promotora de Saúde e
Higiene Oral (APPSHO) foi analisada uma amostra de 152 indivíduos com idades
compreendidas entre os 5 e os 19 anos de idade do Agrupamento de escolas do concelho do
Seixal.
Neste trabalho propôs-se analisar o estado nutricional, utilizando a informação
disponível sobre o Z-score ajustado às idades das crianças e jovens em estudo e investigar
associações e fatores determinantes deste índice.
Ao longo do estudo foram procuradas e aplicadas metodologias de Estatística
Univariada e Bivariada mais usuais para comparação de grupos e estudo de associações, e
utilizaram-se também, modelos multivariados essencialmente descritivos e exploratórios.
Neste âmbito, recorreu-se à Análise de Escalonamento Multidimensional (MDS) de forma a
caraterizar o consumo alimentar das crianças e jovens em determinadas refeições. A Análise
de Clusters (AC) foi aplicada com o intuito de verificar a existência de agrupamentos dos
diversos tipos de alimentos consumidos. Aprofundou-se o estudo com a Análise Fatorial (AF)
pelo método das Componentes Principais (CP), com o objetivo de identificar, com base na
frequência do consumo, padrões alimentares no grupo de indivíduos. Consequentemente,
foram encontrados dois padrões alimentares, denominados por “padrão misto” e “padrão
ocidental”. Apontam-se algumas limitações relacionadas com a amostra e as variáveis em
estudo e algumas recomendações para estudos futuros, no que respeita ao tipo de dados a
solicitar no questionário e às variáveis a incluir na investigação.
This study aims to contribute to the evaluation of the eating habits of children and youngsters through daily dietary behavior using statistical methods. In the context of a project promoted by the Portuguese Association for the Promotion of Oral Health and Hygiene (APPSHO), a sample of 152 individuals aged between 5 and 19 years of age from the School Group of the municipality of Seixal was analyzed. The objective of this study was to analyze the nutritional status using the information available on the Z-score adjusted to the ages of the children and youngsters in the study and to investigate associations and determinants of this index. Throughout the study, most common Univariate and Bivariate Statistics methodologies were used to compare groups and study associations, and multivariate, essentially descriptive and exploratory models were also used. In this context, Multidimensional Scaling Analysis (MDS) was used in order to characterize the food consumption of children and young people in certain meals. The Cluster Analysis (CA) was applied in order to verify the existence of clusters of the different types of food consumed. The study with the Factorial Analysis (PA) was deepened by the Principal Components (CP) method, aiming to identify, based on the frequency of consumption, food patterns in the group of individuals. Consequently, two dietary patterns, called "mixed pattern" and "western standard", were found. Some limitations related to the sample and variables under study and some recommendations for future studies are pointed out, regarding the type of data to be requested in the questionnaire and the variables to be included in the research.
This study aims to contribute to the evaluation of the eating habits of children and youngsters through daily dietary behavior using statistical methods. In the context of a project promoted by the Portuguese Association for the Promotion of Oral Health and Hygiene (APPSHO), a sample of 152 individuals aged between 5 and 19 years of age from the School Group of the municipality of Seixal was analyzed. The objective of this study was to analyze the nutritional status using the information available on the Z-score adjusted to the ages of the children and youngsters in the study and to investigate associations and determinants of this index. Throughout the study, most common Univariate and Bivariate Statistics methodologies were used to compare groups and study associations, and multivariate, essentially descriptive and exploratory models were also used. In this context, Multidimensional Scaling Analysis (MDS) was used in order to characterize the food consumption of children and young people in certain meals. The Cluster Analysis (CA) was applied in order to verify the existence of clusters of the different types of food consumed. The study with the Factorial Analysis (PA) was deepened by the Principal Components (CP) method, aiming to identify, based on the frequency of consumption, food patterns in the group of individuals. Consequently, two dietary patterns, called "mixed pattern" and "western standard", were found. Some limitations related to the sample and variables under study and some recommendations for future studies are pointed out, regarding the type of data to be requested in the questionnaire and the variables to be included in the research.
Description
Keywords
Hábitos alimentares Comportamento alimentar Estado nutricional (Z-score) Testes de avaliação Análise fatorial Análise de clusters Crianças Jovens Feeding habits Nutritional status (Z-score) Association tests Cluster analysis Factor analysis
Citation
Granja, Ana Rita Fidalgo de Almeida - Hábitos alimentares e nutrição em crianças e jovens [Em linha]: modelação estatística de associações e determinantes. [S.l.]: [s.n.], 2018. 160 p.