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Lithium and the Woozle effect.

Tammas Kelly1,2

  • 1Department of Psychiatry and Behavioral Sciences, George Washington University, Washington, District of Columbia.

Bipolar Disorders
|February 10, 2019
PubMed
Summary
This summary is machine-generated.

Lithium treatment for bipolar depression is inconsistently recommended due to cognitive biases like the Woozle effect and belief perseverance. These citation and reporting errors may undermine evidence-based medicine practices.

Keywords:
errorsevidence-based medicinejournalslithiumresearch methodstreatment guidelines

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Area of Science:

  • Psychiatry
  • Evidence-Based Medicine
  • Scientific Literature Analysis

Background:

  • Lithium is a long-established treatment for bipolar depression, yet its recommendation varies significantly across clinical guidelines.
  • Discrepancies in lithium's guideline recommendations necessitate an investigation into potential systematic errors in scientific literature evaluation.

Purpose of the Study:

  • To investigate the reasons behind the conflicting recommendations for lithium in bipolar depression treatment guidelines.
  • To identify cognitive biases and methodological errors, such as the Woozle effect, reference inflation, and belief perseverance, contributing to these discrepancies.

Main Methods:

  • Systematic search and analysis of treatment guidelines for bipolar depression.
  • In-depth examination of the references cited within these guidelines to assess the evidence base for lithium.

Main Results:

  • A significant divergence was observed, with ten guidelines recommending lithium as first-line treatment, while five did not recommend it at all.
  • Guidelines favoring lithium exhibited a prevalence of Woozle effects, reference inflation, and belief perseverance.
  • Analysis of cited references did not robustly support lithium as a superior treatment for bipolar depression.

Conclusions:

  • Cognitive biases, including the Woozle effect, reference inflation, and belief perseverance, appear to influence lithium's recommendation in bipolar depression guidelines.
  • These systematic errors, potentially stemming from peer review failures, can distort evidence-based medicine.
  • Authors and journals must actively mitigate these biases to ensure the integrity of medical research and practice.