{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["175(6)"],"submitter":["Bouzid D"],"pubmed_abstract":["<h4>Background</h4>At the end of 2021, the B.1.1.529 SARS-CoV-2 variant (Omicron) wave superseded the B.1.617.2 variant (Delta) wave.<h4>Objective</h4>To compare baseline characteristics and in-hospital outcomes of patients with SARS-CoV-2 infection with the Delta variant versus the Omicron variant in the emergency department (ED).<h4>Design</h4>Retrospective chart reviews.<h4>Setting</h4>13 adult EDs in academic hospitals in the Paris area from 29 November 2021 to 10 January 2022.<h4>Patients</h4>Patients with a positive reverse transcriptase polymerase chain reaction (RT-PCR) test result for SARS-CoV-2 and variant identification.<h4>Measurements</h4>Main outcome measures were baseline clinical and biological characteristics at ED presentation, intensive care unit (ICU) admission, mechani"],"journal":["Annals of internal medicine"],"pagination":["831-837"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8941485"],"repository":["biostudies-literature"],"pubmed_title":["Comparison of Patients Infected With Delta Versus Omicron COVID-19 Variants Presenting to Paris Emergency Departments : A Retrospective Cohort Study."],"pmcid":["PMC8941485"],"pubmed_authors":["Javaud N","IMProving Emergency Care (IMPEC) FHU Collaborators Group","Femy F","Hermand C","Meritet JF","Beaune S","Simon T","Veyer D","Morel T","Jacquier H","Peyrony O","Gindre F","Freund Y","Cachanado M","Vaittinada Ayar P","Rousseau A","Bouzid D","Augustin C","Pavlovsky T","Bloom B","Riou B","Kassasseya C","Goulet H","Le Goff J","Schnuriger A","Ing V","Vieux T","Yordanov Y","Berard L","Aloui K","Chauvin A","Bourg A","Ferre V","Marot S","Truchot J","Houhou-Fidouh N","Khellaf M","Saib M","Daoud A","Fourati S","Choquet C","Chocron R","Visseaux B","Eyer X","Salmona M","Cahen S","Landraud L","Rozenberg F","Coulomb A"],"additional_accession":[]},"is_claimable":false,"name":"Comparison of Patients Infected With Delta Versus Omicron COVID-19 Variants Presenting to Paris Emergency Departments : A Retrospective Cohort Study.","description":"<h4>Background</h4>At the end of 2021, the B.1.1.529 SARS-CoV-2 variant (Omicron) wave superseded the B.1.617.2 variant (Delta) wave.<h4>Objective</h4>To compare baseline characteristics and in-hospital outcomes of patients with SARS-CoV-2 infection with the Delta variant versus the Omicron variant in the emergency department (ED).<h4>Design</h4>Retrospective chart reviews.<h4>Setting</h4>13 adult EDs in academic hospitals in the Paris area from 29 November 2021 to 10 January 2022.<h4>Patients</h4>Patients with a positive reverse transcriptase polymerase chain reaction (RT-PCR) test result for SARS-CoV-2 and variant identification.<h4>Measurements</h4>Main outcome measures were baseline clinical and biological characteristics at ED presentation, intensive care unit (ICU) admission, mechani","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Jun","modification":"2025-04-19T22:12:42.911Z","creation":"2025-04-19T22:12:42.911Z"},"accession":"S-EPMC8941485","cross_references":{"pubmed":["35286147"],"doi":["10.7326/M22-0308"]}}