Tehrani et al., Risk factors for mortality in adult COVID-19 patients: frailty predicts fatal outcome in older patients, International Journal of Infectious Diseases, doi:10.1016/j.ijid.2020.10.071
Retrospective 255 hospitalized patients, 65 treated with HCQ, showing unadjusted RR 0.87, p=0.63. Confounding by indication is likely.Although the 13% lower mortality is not statistically significant, it is consistent with the significant 22% lower mortality [18‑27%] from meta analysis of the 229 mortality results to date.
This study is excluded in the after exclusion results of meta
analysis:
substantial unadjusted confounding by indication likely; unadjusted results with no group details.
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