{"id":"https://openalex.org/W4312926751","doi":"https://doi.org/10.1183/13993003.congress-2022.3122","title":"Prognostic value of Platelet-to-lymphocyte ratio in hospitalized patients with COVID-19 pneumonia","display_name":"Prognostic value of Platelet-to-lymphocyte ratio in hospitalized patients with COVID-19 pneumonia","publication_year":2022,"publication_date":"2022-09-04","ids":{"openalex":"https://openalex.org/W4312926751","doi":"https://doi.org/10.1183/13993003.congress-2022.3122"},"language":"en","primary_location":{"id":"doi:10.1183/13993003.congress-2022.3122","doi":"https://doi.org/10.1183/13993003.congress-2022.3122","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2022.3122","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":"10.01 - Respiratory infections and bronchiectasis","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/A5022105863","display_name":"N. Boubaker","orcid":"https://orcid.org/0000-0002-9095-5729","observed_orcids":["https://orcid.org/0000-0002-9095-5729"]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"N Boubaker","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063764195","display_name":"Islam Mejri","orcid":"https://orcid.org/0000-0002-8296-4182","observed_orcids":["https://orcid.org/0000-0002-8296-4182"]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"I Mejri","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079077313","display_name":"Nouha Guediri","orcid":"https://orcid.org/0000-0002-0229-9451","observed_orcids":["https://orcid.org/0000-0002-0229-9451"]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"N Guediri","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063974418","display_name":"Selsebil Daboussi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"S Daboussi","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055062800","display_name":"S M'Hamdi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"S M'Hamdi","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030885369","display_name":"C Aichaouia","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"C Aichaouia","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006740979","display_name":"K Ayed","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"K Ayed","raw_affiliation_strings":["Aviation center of medical expertise, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aviation center of medical expertise, Tunis, Tunisia","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015506536","display_name":"Z Moetemri","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210155821","display_name":"Military Hospital of Tunis","ror":"https://ror.org/04n4f3r80","country_code":"TN","type":"healthcare","lineage":["https://openalex.org/I4210155821"]}],"countries":["TN"],"is_corresponding":false,"raw_author_name":"Z Moetemri","raw_affiliation_strings":["The military hospital of Tunis, Tunis, Tunisia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The military hospital of Tunis, Tunis, Tunisia","institution_ids":["https://openalex.org/I4210155821"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"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":"3122","last_page":"3122"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10041","display_name":"COVID-19 Clinical Research Studies","score":0.8047000169754028,"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"}},"topics":[{"id":"https://openalex.org/T10041","display_name":"COVID-19 Clinical Research Studies","score":0.8047000169754028,"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/T11355","display_name":"Inflammatory Biomarkers in Disease Prognosis","score":0.19030000269412994,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"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":0.0038999998942017555,"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/platelet-to-lymphocyte-ratio","display_name":"platelet-to-lymphocyte ratio","score":0.996999979019165},{"id":"https://openalex.org/keywords/covid-19-pneumonia","display_name":"COVID-19 pneumonia","score":0.9860000014305115},{"id":"https://openalex.org/keywords/prognostic-factors","display_name":"prognostic factors","score":0.9900000095367432},{"id":"https://openalex.org/keywords/mortality-prediction","display_name":"mortality prediction","score":0.847000002861023},{"id":"https://openalex.org/keywords/disease-severity","display_name":"disease severity","score":0.6970000267028809},{"id":"https://openalex.org/keywords/inflammation","display_name":"inflammation","score":0.44200000166893005},{"id":"https://openalex.org/keywords/hospitalized-patients","display_name":"hospitalized patients","score":0.7710000276565552},{"id":"https://openalex.org/keywords/intensive-care-unit-admission","display_name":"intensive care unit admission","score":0.7080000042915344},{"id":"https://openalex.org/keywords/cutoff-values","display_name":"cut-off values","score":0.6169999837875366}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.895186722278595},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.7348862886428833},{"id":"https://openalex.org/C10936531","wikidata":"https://www.wikidata.org/wiki/Q786600","display_name":"Procalcitonin","level":3,"score":0.645811915397644},{"id":"https://openalex.org/C2776376669","wikidata":"https://www.wikidata.org/wiki/Q5094647","display_name":"Intensive care unit","level":2,"score":0.58498215675354},{"id":"https://openalex.org/C2777914695","wikidata":"https://www.wikidata.org/wiki/Q12192","display_name":"Pneumonia","level":2,"score":0.5789457559585571},{"id":"https://openalex.org/C58471807","wikidata":"https://www.wikidata.org/wiki/Q327120","display_name":"Receiver operating characteristic","level":2,"score":0.49296069145202637},{"id":"https://openalex.org/C167135981","wikidata":"https://www.wikidata.org/wiki/Q2146302","display_name":"Retrospective cohort study","level":2,"score":0.4777714014053345},{"id":"https://openalex.org/C2779159551","wikidata":"https://www.wikidata.org/wiki/Q1414874","display_name":"Comorbidity","level":2,"score":0.4745403528213501},{"id":"https://openalex.org/C2778384902","wikidata":"https://www.wikidata.org/wiki/Q183134","display_name":"Sepsis","level":2,"score":0.46869778633117676},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.4565948247909546},{"id":"https://openalex.org/C61511704","wikidata":"https://www.wikidata.org/wiki/Q1671857","display_name":"Incidence (geometry)","level":2,"score":0.44595271348953247},{"id":"https://openalex.org/C78529466","wikidata":"https://www.wikidata.org/wiki/Q1363819","display_name":"Red blood cell distribution width","level":2,"score":0.43562203645706177},{"id":"https://openalex.org/C555293320","wikidata":"https://www.wikidata.org/wiki/Q12206","display_name":"Diabetes mellitus","level":2,"score":0.4348081350326538},{"id":"https://openalex.org/C90924648","wikidata":"https://www.wikidata.org/wiki/Q120569","display_name":"Gastroenterology","level":1,"score":0.37737372517585754},{"id":"https://openalex.org/C99454951","wikidata":"https://www.wikidata.org/wiki/Q932068","display_name":"Environmental health","level":1,"score":0.0},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1183/13993003.congress-2022.3122","doi":"https://doi.org/10.1183/13993003.congress-2022.3122","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2022.3122","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":"10.01 - Respiratory infections and bronchiectasis","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W3195696467","https://openalex.org/W4394797392","https://openalex.org/W3217203619","https://openalex.org/W4390446057","https://openalex.org/W4292566842","https://openalex.org/W3095696096","https://openalex.org/W4405118719","https://openalex.org/W4224322700","https://openalex.org/W4381827822","https://openalex.org/W4292440794"],"abstract_inverted_index":{"Platelet-to-lymphocyte":[0],"ratio":[1,49],"(PLR)":[2,50],"is":[3],"a":[4,14,24,59,112,189,205,212,216,221,240],"simple":[5],"biomarker":[6,242],"of":[7,46,73,77,92,98,115,142,158,192,207,218,223],"inflammation":[8],"that":[9,21],"can":[10],"be":[11,239],"measured":[12],"from":[13],"routinely":[15],"blood":[16],"count.":[17],"Various":[18],"studies":[19],"showed":[20],"PLR":[22,93,152,169,177,199,237],"had":[23,154,178],"prognostic":[25,44],"value":[26,45],"in":[27,51,69,247],"various":[28],"conditions":[29],"such":[30],"us":[31],"sepsis,":[32],"acute":[33],"pulmonary":[34],"embolism":[35],"and":[36,82,90,132,147,170,188,200,220,233],"malignant":[37],"tumors.":[38],"We":[39,57],"aimed":[40],"to":[41,53,231,243,251],"determine":[42],"the":[43,47,70,74,123,159,228],"platelet-to-lymphocyte":[48],"moderate":[52,250],"severe":[54,156,252],"COVID":[55],"patients.":[56],"conducted":[58],"retrospective":[60],"study":[61],"including":[62],"245":[63],"patients":[64,248],"with":[65,111,175,215,249],"COVID-19":[66],"pneumonia":[67],"hospitalized":[68],"pulmonology":[71],"department":[72],"military":[75],"hospital":[76,172],"Tunis":[78],"between":[79,168,198],"September":[80],"2020":[81],"December":[83],"2021.":[84],"The":[85,104,136,150],"optimal":[86],"cut\u2010off":[87],"value,":[88],"sensitivity":[89,217],"specificity":[91,222],"were":[94,140,165],"determined":[95],"by":[96,129],"analysis":[97],"receiver":[99],"operating":[100],"characteristic":[101],"(ROC)":[102],"curve.":[103],"population":[105],"was":[106,122,202,209],"majority":[107],"male":[108],"(72,7":[109],"%)":[110],"mean":[113,171],"age":[114],"63":[116],"\u00b1":[117],"13":[118],"years":[119],"old.":[120],"Obesity":[121],"most":[124],"common":[125,137],"comorbidity":[126],"(50%)":[127],"followed":[128],"hypertension":[130],"(39,6%)":[131],"diabetes":[133],"(39,":[134],"2%).":[135],"clinical":[138],"manifestations":[139],"shortness":[141],"breath":[143],"(79,2%),":[144],"cough":[145],"(72,4%)":[146],"fever":[148],"(60,8%).":[149],"high":[151,176],"group":[153],"more":[155,179,182],"form":[157],"disease":[160,245],"on":[161],"admission":[162],"(p=0,03).":[163],"There":[164],"no":[166],"association":[167],"stay(p=0,2).":[173],"Patients":[174],"complications":[180],"(p=0,04),":[181],"intensive":[183],"care":[184],"unit":[185],"referrals":[186],"(p=0,04)":[187],"higher":[190],"incidence":[191],"mortality":[193,201],"(p=0,02).":[194],"A":[195],"significant":[196],"correlation":[197],"observed":[203],"when":[204],"cut-off":[206],"403":[208],"considered":[210],"as":[211],"differentiating":[213],"benchmark":[214],"70%":[219],"84%,":[224],"an":[225],"area":[226],"under":[227],"curve":[229],"equal":[230],"0.768":[232],"p=0.009.":[234],"In":[235],"conclusion,":[236],"could":[238],"valuable":[241],"predict":[244],"progression":[246],"COVID\u201019.":[253]},"counts_by_year":[],"updated_date":"2026-11-01T11:40:01.658920","created_date":"2023-01-05T00:00:00"}
