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Ivermectin study #37 of 63
12/1 Early treatment study
Alonso et al., (Preprint)
COVID-19: Uso de ivermectina
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Observational study in Argentina showing significantly lower mortality in the 60 days after adopting ivermectin compared to the 60 days before, relative risk RR 0.082, p=0.003.

Alonso et al., 12/1/2020, retrospective, Argentina, South America, preprint, 1 author, dosage not specified.
risk of death, 91.8% lower, RR 0.08, p = 0.009, treatment 1 of 311 (0.3%), control 5 of 128 (3.9%).

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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