Ignoring regression to the mean leads to unsupported conclusion about obesity.

Published

Journal Article

Childhood obesity remains a substantial health concern for our population and thoughtful attempts to develop and evaluate the utility of programs to reduce childhood obesity levels are needed. Unfortunately, we believe the conclusion by Burke et al. that the HealthMPowers program produces positive change in body composition is incorrect because the results obtained are likely due to regression to the mean (RTM), a well-known threat to the validity of studies that is often overlooked. Using empirical data, we demonstrate that RTM is likely to be the cause for the changes reported. A more reasonable conclusion than the one of effectiveness the authors offered would be that the results did not support the effectiveness of the intervention. Public health officials, parents, school leaders, community leaders, and regulators need and deserve valid evidence free from spin on which they can base decisions.

Full Text

Duke Authors

Cited Authors

  • Skinner, AC; Heymsfield, SB; Pietrobelli, A; Faith, MS; Allison, DB

Published Date

  • May 7, 2015

Published In

Volume / Issue

  • 12 /

Start / End Page

  • 56 -

PubMed ID

  • 25948534

Pubmed Central ID

  • 25948534

Electronic International Standard Serial Number (EISSN)

  • 1479-5868

International Standard Serial Number (ISSN)

  • 1479-5868

Digital Object Identifier (DOI)

  • 10.1186/s12966-015-0212-6

Language

  • eng