Evaluating human basal metabolism: the erroneous and misleading use of so-called “prediction equations”

G. Bottà, G. Binelli, C. Agostoni, A. Aliverti, G. Scarì, R. Manenti, C. La Vecchia

Research output: Contribution to journalArticle

Abstract

Prediction (regression) equations are widely used, but their reliability as predictive tools is questionable as they provide contradicting results. The key point is that values calculated by regression equations are not precisely defined numbers but lie within a range of possible values in the standard deviation interval, none of which can be considered as the most probable. Ignoring this point leads to illicit/improper calculations, generating wrong results, which may have adverse consequences for human health. To demonstrate this, we applied the equations of Harris and Benedict in a reverse method, i.e. calculating (predicting) the daily energy expenditure in the same subjects used to obtain the equations and comparing values with the original measured data. We used the Bland–Altman and frequency distribution analyses. We found large differences in both individual data and population characteristics, showing that prediction equations are not predictive tools.

Original languageEnglish
Pages (from-to)249-255
Number of pages7
JournalInternational Journal of Food Sciences and Nutrition
Volume71
Issue number2
DOIs
Publication statusPublished - Feb 17 2020

Keywords

  • dietary imbalance
  • energy expenditure
  • energy requirement
  • human metabolism
  • Prediction equations
  • regression model

ASJC Scopus subject areas

  • Food Science

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