HCQ for COVID-19
1st treatment shown to reduce risk in
March 2020
No treatment is 100% effective. Protocols
combine treatments. * >10%
efficacy, ≥3 studies.
4,800+ studies for
102 treatments. c19hcq.org
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risk of death, 99.8% lower, RR 0.002, p < 0.001, treatment 0 of 3,962 (0.0%), control 471 of 20,921 (2.3%), NNT 44, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), All AVUC mild patients vs. Imperial County (corrected).
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risk of hospitalization, 99.8% lower, RR 0.002, p < 0.001, treatment 2 of 3,962 (0.1%), control 4,343 of 20,921 (20.8%), NNT 4.8, All AVUC mild patients vs. Imperial County (corrected).
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risk of death, 97.0% lower, RR 0.03, p < 0.001, treatment 3 of 4,375 (0.1%), control 471 of 20,921 (2.3%), NNT 46, All AVUC patients vs. Imperial County (corrected).
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risk of hospitalization, 99.0% lower, RR 0.010, p < 0.001, treatment 9 of 4,375 (0.2%), control 4,343 of 20,921 (20.8%), NNT 4.9, All AVUC patients vs. Imperial County (corrected).
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Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates |