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0 0.5 1 1.5 2+ Case 67% Improvement Relative Risk c19hcq.com Chatterjee et al. HCQ for COVID-19 PrEP Favors HCQ Favors control
Chatterjee, 455 patient HCQ prophylaxis study: 67% fewer cases [p=0.001] https://c19p.org/chatterjee
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Healthcare workers & SARS-CoV-2 infection in India: A case-control investigation in the time of COVID-19
Chatterjee et al., Indian J. Med. Res., June 20, 2020, doi:10.4103/ijmr.IJMR_2234_20
28 May 2020    Source   PDF   Share   Tweet
4+ doses of HCQ associated with a significant decline in the odds of getting infected, dose-response relationship exists.
risk of case, 66.8% lower, RR 0.33, p < 0.001, treatment 12 of 68 (17.6%), control 206 of 387 (53.2%), NNT 2.8, full course vs. unused.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Chatterjee et al., 5/28/2020, retrospective, India, South Asia, peer-reviewed, survey, 11 authors.
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