Estimando a prevalência da ingestão inadequada de nutrientes

Abstract

In assessing food intake patterns in groups of individuals, it is usually important to know how many of these individuals present nutrient intakes INTRODUTIONThe objective of this work was to discuss a methodology for estimating the prevalence of inadequate nutrient intake. This is an important topic in studies of the prevalence of the intake of different nutrients. Such studies provide backing for establishing hypotheses regarding the relationships between diet and health. In assessing diets within groups of individuals, it is often of interest to determine how many of these individuals present intakes that are above or below a given criterion. This information is relevant for planning healthcare actions, both in monitoring and in assessing such interventions, and also for the purposes of regulating commercial activities.

Consumo energético-protéico e estado nutricional de crianças menores de cinco anos, no estado de Pernambuco, Brasil

“…Avaliar o consumo alimentar não constitui uma tarefa simples, uma vez que exige o emprego de metodologias bastante detalhadas e dispendiosas, bem como entrevistadores devidamente capacitados para a coleta dos dados 4,12,17 . Esses fatos não permitiram a aplicação de inquérito recordatório de 24 horas durante a realização da III Pesquisa Estadual de Saúde em Nutrição (em fase de conclusão de trabalho de campo).…”

“…Os resultados deste estudo devem ser considerados com uma certa cautela, em virtude da possibilidade de a metodologia utilizada ter superestimado os percentuais de prevalência de inadequação. A avaliação da ingestão de alimentos por um único recordatório de 24 horas representa a estimativa de ingestão atual e não a habitual, por não considerar a variabilidade intrapessoal 4,17 . Um outro fator a considerar é que a utilização do recordatório de 24 horas tende a subestimar em até 30% o consumo de energia, em comparação com outros métodos.…”

Comparison of a short version of the Food Frequency Questionnaire with its long version - a cross-sectional analysis in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

“…[1][2][3][4] One of the main challenges in nutritional epidemiology is to develop practical, valid and feasible methods for measuring diet. [5][6][7] Measuring food and nutrient consumption is not an easy task.…”

Nutrional status and dietary factors in cystic fibrosis patients with delta F508 mutation

“…But such limitation was attenuated by the two methods of adjustment used in the study. The first was the within-person and betweenperson variance adjustment for the 3-day diet records to remove the effect of variation of the individuals' food intake on themselves and on others 23 . The second was the residual method of nutrients with the purpose of removing the variation caused by energy consumption 24 .…”

“…In order to determine the average intake from the 3-day diet records, two methods of adjustment were used. The first adjustment was the within-person and betweenperson variance, which resulted in a corrected distribution using an error correction model with formula syntax in Excel ® 2010 (Microsoft Corporation) 23 . The second adjustment was made for total energy intake using the residual method and the linear regression model with the Stata ® software, version 11.0.…”