{"id":"https://openalex.org/W4387979567","doi":"https://doi.org/10.1183/13993003.congress-2023.pa2310","title":"PaO2/FiO2 ratio measured on room air or during supplemental oxygen predicts 28-day mortality in Covid- 19 pneumonia: a large multicenter retrospective study.","display_name":"PaO2/FiO2 ratio measured on room air or during supplemental oxygen predicts 28-day mortality in Covid- 19 pneumonia: a large multicenter retrospective study.","publication_year":2023,"publication_date":"2023-09-09","ids":{"openalex":"https://openalex.org/W4387979567","doi":"https://doi.org/10.1183/13993003.congress-2023.pa2310"},"language":"en","primary_location":{"id":"doi:10.1183/13993003.congress-2023.pa2310","doi":"https://doi.org/10.1183/13993003.congress-2023.pa2310","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2023.pa2310","pdf_url":null,"source":{"id":"https://openalex.org/S4210207896","display_name":"European Respiratory Journal","issn_l":"0903-1936","issn":["0903-1936","1399-3003"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310317833","host_organization_name":"European Respiratory Society","host_organization_lineage":["https://openalex.org/P4310317833"],"host_organization_lineage_names":["European Respiratory Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acute critical care","raw_type":"proceedings-article"},"volume":null,"type":"conference-abstract","is_traditional":false,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5003546375","display_name":"Angela Tramontano","orcid":"https://orcid.org/0000-0003-1041-3258","observed_orcids":["https://orcid.org/0000-0003-1041-3258"]},"institutions":[{"id":"https://openalex.org/I2800330116","display_name":"Policlinico Umberto I","ror":"https://ror.org/011cabk38","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I2800330116"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Angela Tramontano","raw_affiliation_strings":["Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy","institution_ids":["https://openalex.org/I2800330116","https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044951307","display_name":"Maria Luisa Nicolardi","orcid":"https://orcid.org/0000-0003-3566-3907","observed_orcids":["https://orcid.org/0000-0003-3566-3907"]},"institutions":[{"id":"https://openalex.org/I2800330116","display_name":"Policlinico Umberto I","ror":"https://ror.org/011cabk38","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I2800330116"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Maria Luisa Nicolardi","raw_affiliation_strings":["Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy","institution_ids":["https://openalex.org/I2800330116","https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037655922","display_name":"Paola Scarano","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800330116","display_name":"Policlinico Umberto I","ror":"https://ror.org/011cabk38","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I2800330116"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Paola Scarano","raw_affiliation_strings":["Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy","institution_ids":["https://openalex.org/I2800330116","https://openalex.org/I861853513"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027371207","display_name":"Annalisa Boscolo","orcid":"https://orcid.org/0000-0003-3409-4159","observed_orcids":["https://orcid.org/0000-0003-3409-4159"]},"institutions":[{"id":"https://openalex.org/I4210146744","display_name":"Azienda Ospedale - Universit\u00e0 Padova","ror":"https://ror.org/04bhk6583","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210146744"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Annalisa Boscolo","raw_affiliation_strings":["Institute of Anaesthesia and Intensive Care, Padua University Hospital, Padova, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Anaesthesia and Intensive Care, Padua University Hospital, Padova, Italy","institution_ids":["https://openalex.org/I4210146744"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052155859","display_name":"Roberto Dongilli","orcid":"https://orcid.org/0000-0001-5486-585X","observed_orcids":["https://orcid.org/0000-0001-5486-585X"]},"institutions":[{"id":"https://openalex.org/I4210091033","display_name":"Ospedale di Bolzano","ror":"https://ror.org/00cmk4n56","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210091033"]},{"id":"https://openalex.org/I4405267107","display_name":"Azienda Sanitaria dell'Alto Adige","ror":"https://ror.org/0184fe088","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4405267107"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Roberto Dongilli","raw_affiliation_strings":["Division of Respiratory Diseases with Intermediate Respiratory Intensive Care Units, Central Hospital of Bolzano, Bolzano, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Division of Respiratory Diseases with Intermediate Respiratory Intensive Care Units, Central Hospital of Bolzano, Bolzano, Italy","institution_ids":["https://openalex.org/I4210091033","https://openalex.org/I4405267107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091791900","display_name":"Domenico Luca Grieco","orcid":"https://orcid.org/0000-0002-4557-6308","observed_orcids":["https://orcid.org/0000-0002-4557-6308"]},"institutions":[{"id":"https://openalex.org/I2802557943","display_name":"Agostino Gemelli University Polyclinic","ror":"https://ror.org/00rg70c39","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I2802557943"]},{"id":"https://openalex.org/I4210153126","display_name":"Istituti di Ricovero e Cura a Carattere Scientifico","ror":"https://ror.org/04tfzc498","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210153126"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Domenico Luca Grieco","raw_affiliation_strings":["Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Emergency, Intensive Care Medicine and Anesthesia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy","institution_ids":["https://openalex.org/I2802557943","https://openalex.org/I4210153126"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040201206","display_name":"Lara Pisani","orcid":"https://orcid.org/0000-0001-9224-8158","observed_orcids":["https://orcid.org/0000-0001-9224-8158"]},"institutions":[{"id":"https://openalex.org/I4210097083","display_name":"IRCCS Azienda Ospedliero-Universitaria di Bologna Policlinico di Sant'Orsola","ror":"https://ror.org/00t4vnv68","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210097083"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Lara Pisani","raw_affiliation_strings":["Respiratory and Critical Care Unit, University Hospital St. Orsola-Malpighi, Bologna, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Respiratory and Critical Care Unit, University Hospital St. Orsola-Malpighi, Bologna, Italy","institution_ids":["https://openalex.org/I4210097083"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030193021","display_name":"Tommaso Tonetti","orcid":"https://orcid.org/0000-0001-9676-3595","observed_orcids":["https://orcid.org/0000-0001-9676-3595"]},"institutions":[{"id":"https://openalex.org/I4210097083","display_name":"IRCCS Azienda Ospedliero-Universitaria di Bologna Policlinico di Sant'Orsola","ror":"https://ror.org/00t4vnv68","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I4210097083"]},{"id":"https://openalex.org/I9360294","display_name":"University of Bologna","ror":"https://ror.org/01111rn36","country_code":"IT","type":"education","lineage":["https://openalex.org/I9360294"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Tommaso Tonetti","raw_affiliation_strings":["Anaesthesia and Intensive Care Unit, S. Orsola Research Hospital, Alma Mater Studiorum, University of Bologna, Bologna, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Anaesthesia and Intensive Care Unit, S. Orsola Research Hospital, Alma Mater Studiorum, University of Bologna, Bologna, Italy","institution_ids":["https://openalex.org/I4210097083","https://openalex.org/I9360294"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112257794","display_name":"Paolo Palange","orcid":"https://orcid.org/0000-0002-5824-6455","observed_orcids":["https://orcid.org/0000-0002-5824-6455"]},"institutions":[{"id":"https://openalex.org/I2800330116","display_name":"Policlinico Umberto I","ror":"https://ror.org/011cabk38","country_code":"IT","type":"healthcare","lineage":["https://openalex.org/I2800330116"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Paolo Palange","raw_affiliation_strings":["Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pulmonary Critical Care Unit, Policlinico Umberto I Hospital, Sapienza University of Rome, Rome, Italy","institution_ids":["https://openalex.org/I2800330116","https://openalex.org/I861853513"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":9,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"PA2310","last_page":"PA2310"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10322","display_name":"Respiratory Support and Mechanisms","score":0.760699987411499,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10322","display_name":"Respiratory Support and Mechanisms","score":0.760699987411499,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10041","display_name":"COVID-19 Clinical Research Studies","score":0.23229999840259552,"subfield":{"id":"https://openalex.org/subfields/2725","display_name":"Infectious Diseases"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10218","display_name":"Sepsis Diagnosis and Treatment","score":0.0007999999797903001,"subfield":{"id":"https://openalex.org/subfields/2706","display_name":"Critical Care and Intensive Care Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/covid-19-pneumonia","display_name":"COVID-19 pneumonia","score":0.9150000214576721},{"id":"https://openalex.org/keywords/pao2-fio2-ratio","display_name":"PaO2/FiO2 ratio","score":0.9539999961853027},{"id":"https://openalex.org/keywords/acute-respiratory-failure","display_name":"acute respiratory failure","score":0.9539999961853027},{"id":"https://openalex.org/keywords/28-day-mortality","display_name":"28-day mortality","score":0.9819999933242798},{"id":"https://openalex.org/keywords/prognostic-factors","display_name":"prognostic factors","score":0.8489999771118164},{"id":"https://openalex.org/keywords/supplemental-oxygen","display_name":"supplemental oxygen","score":0.9860000014305115},{"id":"https://openalex.org/keywords/emergency-department-admission","display_name":"emergency department admission","score":0.8970000147819519},{"id":"https://openalex.org/keywords/mortality-prediction","display_name":"mortality prediction","score":0.4819999933242798}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7226482033729553},{"id":"https://openalex.org/C58471807","wikidata":"https://www.wikidata.org/wiki/Q327120","display_name":"Receiver operating characteristic","level":2,"score":0.6674116849899292},{"id":"https://openalex.org/C3008058167","wikidata":"https://www.wikidata.org/wiki/Q84263196","display_name":"Coronavirus disease 2019 (COVID-19)","level":4,"score":0.5870919227600098},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.46571066975593567},{"id":"https://openalex.org/C2780630273","wikidata":"https://www.wikidata.org/wiki/Q1988216","display_name":"Oxygen therapy","level":2,"score":0.4423791170120239},{"id":"https://openalex.org/C2777914695","wikidata":"https://www.wikidata.org/wiki/Q12192","display_name":"Pneumonia","level":2,"score":0.43617451190948486},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.42267799377441406},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.07411932945251465},{"id":"https://openalex.org/C2779134260","wikidata":"https://www.wikidata.org/wiki/Q12136","display_name":"Disease","level":2,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C524204448","wikidata":"https://www.wikidata.org/wiki/Q788926","display_name":"Infectious disease (medical specialty)","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1183/13993003.congress-2023.pa2310","doi":"https://doi.org/10.1183/13993003.congress-2023.pa2310","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2023.pa2310","pdf_url":null,"source":{"id":"https://openalex.org/S4210207896","display_name":"European Respiratory Journal","issn_l":"0903-1936","issn":["0903-1936","1399-3003"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310317833","host_organization_name":"European Respiratory Society","host_organization_lineage":["https://openalex.org/P4310317833"],"host_organization_lineage_names":["European Respiratory Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Acute critical care","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W3175097333","https://openalex.org/W4387036953","https://openalex.org/W4403071692","https://openalex.org/W4403176962","https://openalex.org/W4389951519","https://openalex.org/W3115817840","https://openalex.org/W4311376002","https://openalex.org/W3031595378","https://openalex.org/W4393425303","https://openalex.org/W3205962060"],"abstract_inverted_index":{"In":[0],"Covid-19,":[1],"PaO2/FiO2":[2],"ratio":[3],"(PF)":[4],"predicts":[5,36],"mortality":[6,37,86,187],"in":[7,38,105,188,214],"patients":[8,39,52,103,123,145,189],"with":[9,15,40,57,190],"acute":[10],"respiratory":[11],"failure":[12],"(ARF)":[13],"treated":[14],"invasive":[16],"or":[17,46,129,196],"non-invasive":[18],"ventilatory":[19],"support.":[20,150],"Aim":[21],"of":[22,102,144,185,212,218],"this":[23,201],"study":[24,207],"was":[25,66,98,118,140,154],"to":[26,84],"evaluate":[27],"if":[28],"PF":[29,65,82,95,115,137,178,213],"measured":[30,67],"at":[31,68,71,76,152,168,172,176,179],"emergency":[32],"room":[33,44,106,194],"(ER)":[34],"admission":[35,73],"Covid-19":[41,58,191],"ARF":[42,61,77,192],"breathing":[43,193],"air":[45,195],"supplemental":[47,111,197],"oxygen.":[48,112,198],"We":[49],"enrolled":[50],"433":[51],"(215":[53],"male;":[54],"218":[55],"female)":[56],"pneumonia":[59],"and":[60,63,75,174],"(PaO2<60mmHg":[62],"PF<300).":[64],"ER":[69,180],"(T0),":[70],"ward":[72],"(T1)":[74],"nadir":[78],"(T2).":[79],"To":[80],"define":[81],"accuracy":[83],"predict":[85],"we":[87],"used":[88],"receiver-operating":[89],"characteristic":[90],"(ROC)":[91],"curve.":[92],"At":[93,113,135],"T0,":[94],"median":[96,116,138],"value":[97,117,139],"174":[99],"(109-257);":[100],"37.2%":[101],"were":[104,109,146,166],"air,":[107],"62.8%":[108],"on":[110,147],"T1,":[114],"152":[119],"(116-196);":[120],"almost":[121],"all":[122],"received":[124],"positive":[125,148],"pressure":[126,149],"support":[127],"(35.2%)":[128],"high":[130],"flow":[131],"oxygen":[132],"therapy":[133],"(34.9%).":[134],"T2,":[136],"149":[141],"(108-198);":[142],"57.2%":[143],"Mortality":[151],"28-day":[153,157,186],"24.5%.":[155],"Considering":[156],"mortality,":[158],"area":[159],"under":[160],"the":[161,203,209],"ROC":[162],"curve":[163],"(AUROC)":[164],"values":[165],"0.6244":[167],"T0":[169],"[Fig.1],":[170],"0.6186":[171],"T1":[173],"0.6813":[175],"T2.":[177],"is":[181,202],"a":[182],"good":[183],"predictor":[184],"Of":[199],"notice,":[200],"first":[204],"large":[205],"retrospective":[206],"demonstrating":[208],"prognostic":[210],"role":[211],"very":[215],"early":[216],"stage":[217],"Covid-19.":[219]},"counts_by_year":[],"updated_date":"2026-11-01T11:40:01.658920","created_date":"2023-10-28T00:00:00"}
