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0 0.5 1 1.5 2+ Mortality -399% Improvement Relative Risk c19hcq.com Çivriz Bozdağ et al. HCQ for COVID-19 LATE TREATMENT Favors HCQ Favors control
Çivriz Bozdağ, 175 patient HCQ late treatment study: 399% higher mortality [p=0.003] https://c19p.org/civrizbozdag
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Clinical Characteristics and Outcome of COVID-19 in Turkish Hematological Malignancy Patients
Çivriz Bozdağ et al., Turk. J. Haematol., doi:10.4274/tjh.galenos.2021.2021.0287
15 Sep 2021    Source   PDF   Share   Tweet
Retrospective 340 patients with hematological malignancy in Turkey, showing higher mortality with HCQ treatment. Confounding by time is likely because more HCQ patients were earlier in time when overall treatment protocols were significantly worse.
risk of death, 399.2% higher, RR 4.99, p = 0.003, treatment 35, control 140.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: substantial confounding by time likely due to declining usage over the early stages of the pandemic when overall treatment protocols improved dramatically.
Çivriz Bozdağ et al., 15 Sep 2021, retrospective, Turkey, peer-reviewed, 62 authors.
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Late treatment
is less effective
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