Bhattacharya, 106 patient HCQ prophylaxis study: 81% fewer cases [p=0.001] https://c19p.org/bhattacharya
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Pre exposure Hydroxychloroquine use is associated with reduced COVID19 risk in healthcare workers
et al., medRxix, doi:10.1101/2020.06.09.20116806 (Preprint)
HCQ reduced cases from 38% to 7%. 106 people. No serious adverse effects.
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risk of case, 80.7% lower, RR 0.19, p = 0.001, treatment 4 of 54 (7.4%), control 20 of 52 (38.5%), NNT 3.2.
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| Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates |
Bhattacharya et al., 6/9/2020, retrospective, India, South Asia, preprint, 7 authors.
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