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0 0.5 1 1.5 2+ Case 75% Improvement Relative Risk Case (b) 49% c19hcq.com Samajdar et al. HCQ for COVID-19 PrEP Favors HCQ Favors control
Samajdar, 309 patient HCQ prophylaxis study: 75% fewer cases [p<0.0001] https://c19p.org/samajdarh
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Ivermectin and Hydroxychloroquine for Chemo-Prophylaxis of COVID-19: A Questionnaire Survey of Perception and Prescribing Practice of Physicians vis-a-vis Outcomes
Samajdar et al., Journal of the Association of Physicians India, 69:11
17 Nov 2021    Source   PDF   Share   Tweet
Physician survey in India with 164 ivermectin prophylaxis, 129 HCQ prophylaxis, and 81 control patients, showing significantly lower COVID-19 cases with treatment. Details of the treatment and control groups and the definition of cases are not provided, and the results are subject to survey bias. Authors also report on community prophylaxis but present only combined ivermectin/HCQ results.
risk of case, 74.5% lower, RR 0.25, p < 0.001, treatment 12 of 129 (9.3%), control 29 of 81 (35.8%), NNT 3.8, odds ratio converted to relative risk, physician survey.
risk of case, 48.6% lower, RR 0.51, p = 0.03, treatment 11 of 109 (10.1%), control 39 of 200 (19.5%), NNT 11, odds ratio converted to relative risk, combined ivermectin or HCQ in community.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: minimal details provided, unadjusted results with no group details, results may be significantly affected by survey bias.
Samajdar et al., 17 Nov 2021, retrospective, India, peer-reviewed, 9 authors, study period 1 September, 2020 - 31 December, 2020, dosage not specified.
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