Bias in observational studies on the effectiveness of in hospital use of hydroxychloroquine in COVID-19.
M Mirjam HempeniusS H Sophie BotsR H H Rolf GroenwoldA Ton de BoerO H Olaf KlungelH Helga GardarsdottirPublished in: Pharmacoepidemiology and drug safety (2023)
Overall, the quality of observational HCQ studies was heterogeneous. Synthesis of evidence of effectiveness of HCQ in COVID-19 should focus on RCTs and carefully consider the added value and quality of observational evidence. This article is protected by copyright. All rights reserved.