Within-person variance for adjusting nutrient distribution in epidemiological studies

Authors

  • Juliana Masami Morimoto Universidade Presbiteriana Mackenzie; Centro de Ciências Biológicas e da Saúde
  • Dirce Maria Lobo Marchioni USP; FSP; Departamento de Nutrição
  • Chester Luiz Galvão Cesar USP; FSP; Departamento de Epidemiologia
  • Regina Mara Fisberg USP; FSP; Departamento de Nutrição

DOI:

https://doi.org/10.1590/S0034-89102011000300022

Keywords:

Data Interpretation, Statistical, Nutrition Surveys, Nutrition Assessment, Within-person variance

Abstract

The objective of the study was to present the within-person variance component for adjusting nutrient distribution in adults and elderly people. The data used were from a population-based survey with a representative sample (n = 511) of individuals aged 19 years and over in the municipality of São Paulo, Southeastern Brazil, conducted in 2007. The within-person variance component was obtained using the Iowa State University method. Differences in within-person variance components were observed for some nutrients according to gender. These values should be used to adjust nutrient intake distributions, because lack of adjustment may result in biased data analysis and interpretation.

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Published

2011-06-01

Issue

Vol. 45 No. 3 (2011)

Section

Brief Communication

How to Cite

Morimoto, J. M., Marchioni, D. M. L., Cesar, C. L. G., & Fisberg, R. M. (2011). Within-person variance for adjusting nutrient distribution in epidemiological studies . Revista De Saúde Pública, 45(3), 621-625. https://doi.org/10.1590/S0034-89102011000300022