Retrospective 377 patients, 73% reduction in mortality with HCQ+AZ, adjusted hazard ratio HR 0.27 [0.17-0.41]. Mean age 71.8. No serious adverse events. Subject to incomplete adjustment for confounders.
Lauriola et al., 9/14/2020, retrospective, Italy, Europe, peer-reviewed, mean age 71.8, 10 authors.
risk of death, 73.5% lower, RR 0.27, p < 0.001, treatment 102 of 297 (34.3%), control 35 of 63 (55.6%), adjusted per study.
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.