Retrospective 668 hospitalized patients in Argentina, 18 treated with HCQ, not showing a significant difference in unadjusted results.
Barra et al., 7/31/2021, retrospective, Argentina, South America, preprint, 12 authors.
risk of death, 10.8% lower, RR 0.89, p = 1.00, treatment 2 of 18 (11.1%), control 81 of 650 (12.5%), unadjusted.
This study is excluded in the after exclusion results of meta analysis: unadjusted results with no group details.
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.