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All Studies   Meta Analysis   Recent: 
0 0.5 1 1.5 2+ Severe case -81% Improvement Relative Risk c19early.com/fm Zhou et al. Famotidine for COVID-19 LATE TREATMENT Favors famotidine Favors control
Zhou, 3,114 patient famotidine late treatment PSM study: 81% higher severe cases [p=0.0001] https://c19p.org/zhou3
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Proton pump inhibitor or famotidine use and severe COVID-19 disease: a propensity score-matched territory-wide study
4 Dec 2020    Source   PDF   Share   Tweet
Retrospective 4,445 COVID+ patients in China, showing higher risk of combined death/intubation/ICU with famotidine treatment.
risk of severe case, 81.0% higher, HR 1.81, p < 0.001, treatment 72 of 519 (13.9%), control 198 of 2,595 (7.6%), death/intubation/ICU, propensity score matching, Cox proportional hazards.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Zhou et al., 12/4/2020, retrospective, propensity score matching, China, Asia, peer-reviewed, 7 authors, study period 1 January, 2020 - 22 August, 2020.
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Late treatment
is less effective
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