Physicians’ preference towards the non-evidence based hydroxychloroquine treatment for COVID-19: the pandemic effect

Authors

  • Luis Claudio Correia Choosing Wisely Brazil Centre for Evidence-based Medicine, Medical and Public Health School of Bahia
  • João Ricardo Pinto Lopes Centre for Evidence-based Medicine, Medical and Public Health School of Bahia
  • Flávia Barreto Garcez Division of Geriatrics, University of Sao Paulo Medical School
  • Edmond Le Campion Department of Surgery, Federal University of Goias
  • Guilherme Barcellos Choosing Wisely Brazil Quality and Safety Department, Hospital de Clínicas de Porto Alegre
  • José Augusto Barreto-Filho Department of Internal Medicine, Federal University of Sergipe

DOI:

https://doi.org/10.17267/2675-021Xevidence.v2i1.3014

Keywords:

COVID-19. Evidence-Based Medicine. Hydroxychloroquine.

Abstract

OBJECTIVE: To evaluate whether there is a "pandemic effect" promoting irrational medical reasoning. METHODS: Cross-sectional study. Setting state medical councils were asked to send all registered physicians two sequential email invitations to complete a Google Form questionnaire. Between April 15 and May 3, 2020, 370 doctors answered our questionnaire with questions about the prescription of hydroxychloroquine for COVID-19 and vitamin C for sepsis. The questionnaire had a five-point Likert scale (greater number, greater support) on the degree of propensity to prescribe the medication and a binary question (yes or no) to express the doctor's final decision to prescribe. These two questions, in the same order, were asked for scenarios of mild, moderate and severe cases. RESULTS: The propensity to prescribe hydroxychloroquine for COVID-19 increased with the severity of the clinical presentation: for mild cases, 37% (95% CI 32%-42%) of the physicians chose "yes", increasing to 68% (95% CI 63%-72%) and 89% (95% CI 85%-92%) for moderate or severe cases, respectively (Cochran's Q test: P<0.001). The medians and interquartile ranges of the Likert scales for hydroxychloroquine were 2 (1-4), 4 (2-4), 4 (4-5) in mild, moderate and severe cases of COVID-19 (Friedman test: P<0.001). CONCLUSIONS: The propensity of the Brazilian physician to prescribe hydroxychloroquine for COVID-19 is high and, according to the severity of the disease, ranged from 37 to 89%. On the contrary, the propensity to prescribe vitamin C for sepsis, a non-pandemic situation, was lower and not associated with clinical severity. Our data suggest a "pandemic effect" promoting irrationality in medical reasoning.

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Published

07/06/2020

Issue

Section

Research Articles

How to Cite

1.
Correia LC, Lopes JRP, Garcez FB, Campion EL, Barcellos G, Barreto-Filho JA. Physicians’ preference towards the non-evidence based hydroxychloroquine treatment for COVID-19: the pandemic effect. Evidence [Internet]. 2020 Jul. 6 [cited 2024 May 30];2(1):10-5. Available from: https://journals.bahiana.edu.br/index.php/evidence/article/view/3014