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0 0.5 1 1.5 2+ Mortality -63% Improvement Relative Risk c19hcq.com Psevdos et al. HCQ for COVID-19 LATE TREATMENT Favors HCQ Favors control
Psevdos, 67 patient HCQ late treatment study: 63% higher mortality [p=0.52] https://c19p.org/psevdos
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Corona Virus Disease-19 (COVID-19) in a Veterans Affairs Hospital at Suffolk County, Long Island, New York
Psevdos et al., Open Forum Infectious Diseases, doi:10.1093/ofid/ofaa439.721
31 Dec 2020    Source   PDF   Share   Tweet
Retrospective 67 hospitalized patients in the USA showing non-statistically significant unadjusted increased mortality with HCQ. Confounding by indication is likely.
Time varying confounding is likely. HCQ became controversial and was suspended during the end of the period studied, therefore HCQ use was likely more frequent toward the beginning of the study period, a time when overall treatment protocols were significantly worse.
risk of death, 63.5% higher, RR 1.63, p = 0.52, treatment 17 of 52 (32.7%), control 3 of 15 (20.0%).
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: unadjusted results with no group details, no treatment details, substantial confounding by time likely due to declining usage over the early stages of the pandemic when overall treatment protocols improved dramatically, substantial unadjusted confounding by indication likely.
Psevdos et al., 12/31/2020, retrospective, USA, North America, peer-reviewed, 3 authors.
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