Handling random errors and biases in methods used for short-term dietary assessment
Fuchs, Sandra C
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CitationRossato, Sinara L., and Sandra C Fuchs. 2014. “Handling random errors and biases in methods used for short-term dietary assessment.” Revista de Saúde Pública 48 (5): 845-850. doi:10.1590/S0034-8910.2014048005154. http://dx.doi.org/10.1590/S0034-8910.2014048005154.
AbstractEpidemiological studies have shown the effect of diet on the incidence of chronic diseases; however, proper planning, designing, and statistical modeling are necessary to obtain precise and accurate food consumption data. Evaluation methods used for short-term assessment of food consumption of a population, such as tracking of food intake over 24h or food diaries, can be affected by random errors or biases inherent to the method. Statistical modeling is used to handle random errors, whereas proper designing and sampling are essential for controlling biases. The present study aimed to analyze potential biases and random errors and determine how they affect the results. We also aimed to identify ways to prevent them and/or to use statistical approaches in epidemiological studies involving dietary assessments.
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