Journal
REVISTA DE SAUDE PUBLICA
Volume 45, Issue 3, Pages 621-625Publisher
REVISTA DE SAUDE PUBLICA
DOI: 10.1590/S0034-89102011000300022
Keywords
Data Interpretation, Statistical; Nutrition Surveys; Nutrition Assessment; Within-person variance
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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 Sao 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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