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HCQ study #146 of 264
9/24 Late treatment study
Shoaibi et al., medRxiv, doi:10.1101/2020.09.23.20199463 (Preprint)
Comparative Effectiveness of Famotidine in Hospitalized COVID-19 Patients
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Retrospective database analysis focused on Famotidine but also showing results for HCQ users, with unadjusted mortality RR 0.85, p<0.001 (13.6% vs. 16.1%).

Shoaibi et al., 9/24/2020, retrospective, database analysis, USA, North America, preprint, 5 authors.
risk of death, 15.4% lower, RR 0.85, p < 0.001, treatment 686 of 5047 (13.6%), control 3923 of 24404 (16.1%).

Effect extraction follows pre-specified rules prioritizing more serious outcomes. For an individual study the most serious outcome may have a smaller number of events and lower statistical signficance, however this provides the strongest evidence for the most serious outcomes when combining the results of many trials.
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