Risk of bias in randomized controlled trials of psychological treatments for bulimia nervosa and binge eating

Juliana Pagotto Trevizo, Phillipa Hay, Walter Swardfager, Hugo Cogo-Moreira

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: In the context of Cochrane systematic reviews/meta-analyses of randomized clinical trials, risk of bias (RoB) is assessed using categorical indicators (low, unclear, or high RoB). This study sought to evaluate the indicators of the Cochrane RoB tool available for construct validity as applied to randomized clinical trials of psychological treatments for bulimia nervosa and binge eating. Methods: Bayesian confirmatory factor analysis was used to test the construct validity of the measurement model underlying the set of five categorical items, and the reliability of these indicators to measure RoB. Results: In 48 primary randomized clinical trials, the model showed good fit indices and factor loadings higher than 0.4. Conclusions: The results support the construct validity of the Cochrane RoB tool and the reliability of three of five items in this health intervention context.
Original languageEnglish
Pages (from-to)625-628
Number of pages5
JournalAnnals of Epidemiology
Volume28
Issue number9
DOIs
Publication statusPublished - 2018

Keywords

  • anorexia nervosa
  • bulimia
  • compulsive eating
  • eating disorders
  • intervention

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