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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2+ Hospitalization 24% Improvement Relative Risk Hospitalization (b) 55% c19hcq.com/cordtz.html Favors HCQ Favors control
28 December 2020 - Pre-Exposure Prophylaxis study (treated before exposed to the virus)
Incidence and severeness of COVID-19 hospitalisation in patients with inflammatory rheumatic disease: a nationwide cohort study from Denmark
Cordtz et al., Rheumatology, doi:10.1093/rheumatology/keaa897 (Peer Reviewed)
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Retrospective 58,052 rheumatic disease patients in Denmark showing that RA patients have a higher risk of COVID-19 hospitalization in general. HCQ treated patients show lower risk, although this is not statistically significant with only 3 hospitalizations for HCQ treated patients.
HR 0.76 [0.23-2.52] time-dependent exposure model
HR 0.45 [0.11-1.92] time-fixed exposure model
risk of hospitalization, 24.0% lower, RR 0.76, p = 0.67, treatment 3 of 2,722 (0.1%), control 38 of 26,718 (0.1%), NNT 3124, adjusted per study, time-dependent exposure model.
risk of hospitalization, 55.0% lower, RR 0.45, p = 0.28, treatment 3 of 2,722 (0.1%), control 38 of 26,718 (0.1%), NNT 3124, adjusted per study, time-fixed exposure model.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Cordtz et al., 12/28/2020, retrospective, population-based cohort, Denmark, Europe, peer-reviewed, 10 authors.
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