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0 0.5 1 1.5 2+ Mortality 40% Improvement Relative Risk c19hcq.org Di Castelnuovo et al. HCQ for COVID-19 LATE TREATMENT Is late treatment with HCQ beneficial for COVID-19? Retrospective 4,270 patients in Italy Lower mortality with HCQ (p<0.000001) Di Castelnuovo et al., J. Healthcare Engineering, doi:10.1155/2021/5556207 Favors HCQ Favors control
Disentangling the Association of Hydroxychloroquine Treatment with Mortality in Covid-19 Hospitalized Patients through Hierarchical Clustering
Di Castelnuovo et al., Journal of Healthcare Engineering, doi:10.1155/2021/5556207 (date from earlier preprint)
Di Castelnuovo et al., Disentangling the Association of Hydroxychloroquine Treatment with Mortality in Covid-19 Hospitalized Patients.., Journal of Healthcare Engineering, doi:10.1155/2021/5556207 (date from earlier preprint)
Jan 2021   Source   PDF  
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Retrospective 4,396 hospitalized patients in Italy showing significantly lower mortality with HCQ treatment, and identifying greater efficacy for a subgroup of patients in clustering analysis.
risk of death, 40.0% lower, RR 0.60, p < 0.001, treatment 3,270, control 1,000, odds ratio converted to relative risk, multivariate Cox proportional hazards model 4, control prevalence approximated with overall prevalence.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Di Castelnuovo et al., 29 Jan 2021, retrospective, Italy, peer-reviewed, 112 authors.
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Abstract: Hindawi Journal of Healthcare Engineering Volume 2021, Article ID 5556207, 10 pages https://doi.org/10.1155/2021/5556207 Research Article Disentangling the Association of Hydroxychloroquine Treatment with Mortality in Covid-19 Hospitalized Patients through Hierarchical Clustering Augusto Di Castelnuovo ,1 Alessandro Gialluisi,2 Andrea Antinori,3 Nausicaa Berselli,4 Lorenzo Blandi,5 Marialaura Bonaccio,2 Raffaele Bruno,6,7 Roberto Cauda,8,9 Simona Costanzo,2 Giovanni Guaraldi,10 Lorenzo Menicanti,11 Marco Mennuni,12 Ilaria My,13 Giustino Parruti,14 Giuseppe Patti,12 Stefano Perlini,15,16 Francesca Santilli,17 Carlo Signorelli,18 Giulio Stefanini,13 Alessandra Vergori,19 Walter Ageno,20 Antonella Agodi,21 Piergiuseppe Agostoni,22,23 Luca Aiello,24 Samir Al Moghazi,25 Rosa Arboretti,26 Filippo Aucella,27 Greta Barbieri,28 Martina Barchitta,29 Paolo Bonfanti,30,31 Francesco Cacciatore,32 Lucia Caiano,20 Francesco Cannata,13 Laura Carrozzi,33 Antonio Cascio,34 Giacomo Castiglione,35 Arturo Ciccullo,8 Antonella Cingolani,8,9 Francesco Cipollone,17 Claudia Colomba,34 Crizia Colombo,12 Annalisa Crisetti,27 Francesca Crosta,14 Gian Battista Danzi,36 Damiano D’Ardes,17 Katleen de Gaetano Donati,8,9 Francesco Di Gennaro,37 Giuseppe Di Tano,36 Gianpiero D’Offizi,38 Francesco Maria Fusco,39 Carlo Gaudiosi,40 Ivan Gentile,41 Francesco Gianfagna1,20 Gabriele Giuliano,8 Emauele Graziani,42 Gabriella Guarnieri,43 Valerio Langella,44 Giovanni Larizza,45 Armando Leone,46 Gloria Maccagni,36 Federica Magni,20 Stefano Maitan,24 Sandro Mancarella,47 Rosa Manuele,48 Massimo Mapelli,22,23 Riccardo Maragna,22,23 Rossella Marcucci,49 Giulio Maresca,44 Silvia Marongiu,50 Claudia Marotta,37 Lorenzo Marra,46 Franco Mastroianni,45 Alessandro Mengozzi,51 Marianna Meschiari,10 Jovana Milic,10 Filippo Minutolo,52 Roberta Mussinelli,16 Cristina Mussini,10 Maria Musso,53 Anna Odone,5 Marco Olivieri,54 Antonella Palimodde,50 Emanuela Pasi,42 Raffaele Pesavento,55 Francesco Petri,30 Carlo A Pivato,13 Venerino Poletti,56,57 Claudia Ravaglia,56 Giulia Righetti,45 Andrea Rognoni,12 Marco Rossato,55 Ilaria Rossi,17 Marianna Rossi,30 Anna Sabena,15 Francesco Salinaro,15 Vincenzo Sangiovanni,39 Carlo Sanrocco,14 Nicola Schiano Moriello,41 Laura Scorzolini,58 Raffaella Sgariglia,47 Paola Giustina Simeone,14 Michele Spinicci,49 Enrica Tamburrini,8 Carlo Torti,59 Enrico Maria Trecarichi,59 Roberto Vettor,55 Andrea Vianello,43 Marco Vinceti,4,60 Agostino Virdis,51 Raffaele De Caterina,33 and Licia Iacoviello 2,20 1 Mediterranea Cardiocentro, Napoli, Italy Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy 3 UOC Immunodeficienze Virali, National Institute for Infectious Diseases “L. Spallanzani” IRCCS, Rome, Italy 4 Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy 5 Università di Pavia, Pavia, Italy 6 Division of Infectious Diseases I, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy 7 Department of Clinical, Surgical Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy 8 Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy 2 2 Journal of Healthcare Engineering 9 Università Cattolica Del Sacro Cuore- Dipartimento di Sicurezza e Bioetica Sede di Roma, Roma, Italy Infectious Disease Unit, Department of Surgical, Medical Dental and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy 11 IRCCS Policlinico San Donato,..
Late treatment
is less effective
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