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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ Mortality 11% Improvement Relative Risk c19hcq.com/barra.html Favors HCQ Favors control
31 July 2021 - Late treatment study
COVID-19 in hospitalized patients in 4 hospitals in San Isidro, Buenos Aires, Argentina
Barra et al., medRxiv, doi:10.1101/2021.07.30.21261220 (Preprint)
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Retrospective 668 hospitalized patients in Argentina, 18 treated with HCQ, not showing a significant difference in unadjusted results.
risk of death, 10.8% lower, RR 0.89, p = 1.00, treatment 2 of 18 (11.1%), control 81 of 650 (12.5%), NNT 74, unadjusted.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
This study is excluded in the after exclusion results of meta analysis: unadjusted results with no group details.
Barra et al., 7/31/2021, retrospective, Argentina, South America, preprint, 12 authors.
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