{"id":"https://openalex.org/W2808829688","doi":"https://doi.org/10.1017/s1047951118000926","title":"Examining variation in interstage mortality rates across the National Pediatric Cardiology Quality Improvement Collaborative: do lower-mortality centres have lower-risk patients?","display_name":"Examining variation in interstage mortality rates across the National Pediatric Cardiology Quality Improvement Collaborative: do lower-mortality centres have lower-risk patients?","publication_year":2018,"publication_date":"2018-06-21","ids":{"openalex":"https://openalex.org/W2808829688","doi":"https://doi.org/10.1017/s1047951118000926","mag":"2808829688","pmid":"https://pubmed.ncbi.nlm.nih.gov/29925455"},"language":"en","primary_location":{"id":"doi:10.1017/s1047951118000926","doi":"https://doi.org/10.1017/s1047951118000926","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s1047951118000926","pdf_url":null,"source":{"id":"https://openalex.org/S159891131","display_name":"Cardiology in the Young","issn_l":"1047-9511","issn":["1047-9511","1467-1107"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-40","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cardiology in the Young","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"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/A5074917806","display_name":"Katherine E. Bates","orcid":"https://orcid.org/0000-0002-2844-7520","observed_orcids":["https://orcid.org/0000-0002-2844-7520"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210151884","display_name":"C. S. Mott Children's Hospital","ror":"https://ror.org/05h0f1d70","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445","https://openalex.org/I4210151884"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Katherine E. Bates","raw_affiliation_strings":["1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]},{"raw_affiliation_string":"Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029064559","display_name":"Sunkyung Yu","orcid":"https://orcid.org/0000-0002-3995-1765","observed_orcids":["https://orcid.org/0000-0002-3995-1765"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210151884","display_name":"C. S. Mott Children's Hospital","ror":"https://ror.org/05h0f1d70","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445","https://openalex.org/I4210151884"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sunkyung Yu","raw_affiliation_strings":["1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]},{"raw_affiliation_string":"Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019182169","display_name":"Ray Lowery","orcid":"https://orcid.org/0000-0002-3721-0584","observed_orcids":["https://orcid.org/0000-0002-3721-0584"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210151884","display_name":"C. S. Mott Children's Hospital","ror":"https://ror.org/05h0f1d70","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445","https://openalex.org/I4210151884"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ray Lowery","raw_affiliation_strings":["1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]},{"raw_affiliation_string":"Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032267009","display_name":"Sara K. Pasquali","orcid":"https://orcid.org/0000-0002-3114-2680","observed_orcids":["https://orcid.org/0000-0002-3114-2680"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210151884","display_name":"C. S. Mott Children's Hospital","ror":"https://ror.org/05h0f1d70","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445","https://openalex.org/I4210151884"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sara K. Pasquali","raw_affiliation_strings":["1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]},{"raw_affiliation_string":"Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083497987","display_name":"David W. Brown","orcid":"https://orcid.org/0000-0002-8406-5957","observed_orcids":["https://orcid.org/0000-0002-8406-5957"]},"institutions":[{"id":"https://openalex.org/I1288882113","display_name":"Boston Children's Hospital","ror":"https://ror.org/00dvg7y05","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1288882113"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David W. Brown","raw_affiliation_strings":["2Department of Cardiology,Boston Children's Hospital,Boston,MA,USA","Department of Cardiology, Boston Children's Hospital, Boston, MA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"2Department of Cardiology,Boston Children's Hospital,Boston,MA,USA","institution_ids":["https://openalex.org/I1288882113"]},{"raw_affiliation_string":"Department of Cardiology, Boston Children's Hospital, Boston, MA, USA","institution_ids":["https://openalex.org/I1288882113"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048867312","display_name":"Peter B. Manning","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1324021844","display_name":"St. Louis Children's Hospital","ror":"https://ror.org/00qw1qw03","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1324021844","https://openalex.org/I1328499231"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Peter B. Manning","raw_affiliation_strings":["3Department of Surgery,Division of Cardiothoracic Surgery,St. Louis Children's Hospital,St. Louis,MO,USA","Department of Surgery, Division of Cardiothoracic Surgery, St. Louis Children's Hospital, St. Louis, MO, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"3Department of Surgery,Division of Cardiothoracic Surgery,St. Louis Children's Hospital,St. Louis,MO,USA","institution_ids":["https://openalex.org/I1324021844"]},{"raw_affiliation_string":"Department of Surgery, Division of Cardiothoracic Surgery, St. Louis Children's Hospital, St. Louis, MO, USA","institution_ids":["https://openalex.org/I1324021844"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080655810","display_name":"Karen C. Uzark","orcid":"https://orcid.org/0000-0002-7303-7635","observed_orcids":["https://orcid.org/0000-0002-7303-7635"]},"institutions":[{"id":"https://openalex.org/I27837315","display_name":"University of Michigan","ror":"https://ror.org/00jmfr291","country_code":"US","type":"education","lineage":["https://openalex.org/I27837315"]},{"id":"https://openalex.org/I4210114445","display_name":"Michigan Medicine","ror":"https://ror.org/01zcpa714","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445"]},{"id":"https://openalex.org/I4210151884","display_name":"C. S. Mott Children's Hospital","ror":"https://ror.org/05h0f1d70","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I4210114445","https://openalex.org/I4210151884"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Karen Uzark","raw_affiliation_strings":["1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI, USA","Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Department of Pediatrics and Communicable Diseases,Congenital Heart Center,C.S. Mott Children's Hospital,Ann Arbor,MI,USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]},{"raw_affiliation_string":"Department of Cardiac Surgery, University of Michigan Medical School, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210114445"]},{"raw_affiliation_string":"Department of Pediatrics and Communicable Diseases, Congenital Heart Center, C.S. Mott Children's Hospital, Ann Arbor, MI, USA","institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5074917806"],"corresponding_institution_ids":["https://openalex.org/I27837315","https://openalex.org/I4210151884"],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":0.9557,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.768312,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"28","issue":"8","first_page":"1031","last_page":"1036"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10300","display_name":"Congenital Heart Disease Studies","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T10300","display_name":"Congenital Heart Disease Studies","score":0.9976000189781189,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T12272","display_name":"Cardiovascular Conditions and Treatments","score":0.0003000000142492354,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"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/T11677","display_name":"Congenital heart defects research","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/interstage-mortality","display_name":"interstage mortality","score":0.8859999775886536},{"id":"https://openalex.org/keywords/hypoplastic-left-heart-syndrome","display_name":"hypoplastic left heart syndrome","score":0.9959999918937683},{"id":"https://openalex.org/keywords/postnatal-diagnosis","display_name":"postnatal diagnosis","score":0.746999979019165},{"id":"https://openalex.org/keywords/risk-factors","display_name":"risk factors","score":0.6119999885559082},{"id":"https://openalex.org/keywords/perioperative-practice","display_name":"perioperative practice","score":0.8880000114440918},{"id":"https://openalex.org/keywords/quality-improvement","display_name":"quality improvement","score":0.5249999761581421},{"id":"https://openalex.org/keywords/infants","display_name":"infants","score":0.3059999942779541}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9221240282058716},{"id":"https://openalex.org/C179755657","wikidata":"https://www.wikidata.org/wiki/Q58702","display_name":"Mortality rate","level":2,"score":0.6205183267593384},{"id":"https://openalex.org/C31174226","wikidata":"https://www.wikidata.org/wiki/Q64855140","display_name":"Perioperative","level":2,"score":0.5081477165222168},{"id":"https://openalex.org/C2777984932","wikidata":"https://www.wikidata.org/wiki/Q7336293","display_name":"Risk of mortality","level":2,"score":0.5012240409851074},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.43210598826408386},{"id":"https://openalex.org/C50440223","wikidata":"https://www.wikidata.org/wiki/Q1475848","display_name":"Risk factor","level":2,"score":0.41101184487342834},{"id":"https://openalex.org/C194828623","wikidata":"https://www.wikidata.org/wiki/Q2861470","display_name":"Emergency medicine","level":1,"score":0.3951275646686554},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.3830574154853821},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.19109374284744263},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D002309","descriptor_name":"Cardiology","qualifier_ui":"Q000458","qualifier_name":"organization & administration","is_major_topic":true},{"descriptor_ui":"D003299","descriptor_name":"Cooperative Behavior","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D003422","descriptor_name":"Critical Care","qualifier_ui":"Q000592","qualifier_name":"standards","is_major_topic":true},{"descriptor_ui":"D005260","descriptor_name":"Female","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007223","descriptor_name":"Infant","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007231","descriptor_name":"Infant, Newborn","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012042","descriptor_name":"Registries","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012307","descriptor_name":"Risk Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D014481","descriptor_name":"United States","qualifier_ui":"Q000453","qualifier_name":"epidemiology","is_major_topic":false},{"descriptor_ui":"D015999","descriptor_name":"Multivariate Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016015","descriptor_name":"Logistic Models","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016896","descriptor_name":"Treatment Outcome","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D018636","descriptor_name":"Hypoplastic Left Heart Syndrome","qualifier_ui":"Q000401","qualifier_name":"mortality","is_major_topic":true},{"descriptor_ui":"D018636","descriptor_name":"Hypoplastic Left Heart Syndrome","qualifier_ui":"Q000601","qualifier_name":"surgery","is_major_topic":false},{"descriptor_ui":"D019990","descriptor_name":"Perioperative Care","qualifier_ui":"Q000592","qualifier_name":"standards","is_major_topic":true},{"descriptor_ui":"D058996","descriptor_name":"Quality Improvement","qualifier_ui":"Q000458","qualifier_name":"organization & administration","is_major_topic":true}],"locations_count":2,"locations":[{"id":"doi:10.1017/s1047951118000926","doi":"https://doi.org/10.1017/s1047951118000926","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s1047951118000926","pdf_url":null,"source":{"id":"https://openalex.org/S159891131","display_name":"Cardiology in the Young","issn_l":"1047-9511","issn":["1047-9511","1467-1107"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-d","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-40","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cardiology in the Young","raw_type":"journal-article"},{"id":"pmid:29925455","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/29925455","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Cardiology in the young","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3","score":1.0}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1790986774","https://openalex.org/W1891872093","https://openalex.org/W1994806469","https://openalex.org/W2012100930","https://openalex.org/W2041160775","https://openalex.org/W2043057477","https://openalex.org/W2049671475","https://openalex.org/W2062736202","https://openalex.org/W2075318595","https://openalex.org/W2123760267","https://openalex.org/W2129870804","https://openalex.org/W2138860957","https://openalex.org/W2152383301","https://openalex.org/W2155015547","https://openalex.org/W2163635982","https://openalex.org/W2517744910"],"related_works":["https://openalex.org/W2887099407","https://openalex.org/W2000805131","https://openalex.org/W2169187674","https://openalex.org/W2919699679","https://openalex.org/W3087966743","https://openalex.org/W4313419341","https://openalex.org/W3159643929","https://openalex.org/W2583582352","https://openalex.org/W2513535381","https://openalex.org/W2092183198"],"abstract_inverted_index":{"BACKGROUND:":[0],"Although":[1],"interstage":[2,32,64,77,87,117,209],"mortality":[3,33,65,88,118,165,179,210],"for":[4,175,243],"infants":[5],"with":[6,30,60,74,85,124,187],"hypoplastic":[7],"left":[8],"heart":[9],"syndrome":[10],"has":[11],"declined":[12],"within":[13],"the":[14,127,140,146,168],"National":[15,53],"Pediatric":[16,54],"Cardiology":[17,55],"Quality":[18,56],"Improvement":[19,57],"Collaborative,":[20],"variation":[21,236],"across":[22,52],"centres":[23,29,59,69,80,109,130,150,172,185,217],"persists.":[24],"It":[25],"remains":[26],"unclear":[27],"whether":[28,38],"lower":[31,61],"have":[34],"lower-risk":[35],"patients":[36],"or":[37],"differences":[39,197,225],"in":[40,126,183,189,200,208,226,237],"care":[41,238],"may":[42],"explain":[43],"this":[44,176],"variation.":[45],"We":[46],"examined":[47],"previously":[48],"established":[49],"risk":[50,99,137,228],"factors":[51,100,138],"Collaborative":[58],"and":[62,101,114,148,203],"higher":[63],"rates.":[66],"METHODS:":[67],"Lower-mortality":[68],"were":[70,81,104,110],"defined":[71,82],"as":[72,83,122],"those":[73,84],">25":[75],"consecutive":[76],"survivors.":[78],"Higher-mortality":[79],"cumulative":[86],"rates":[89,211],">10%,":[90],"which":[91],"is":[92,232],"a":[93,163],"collaborative":[94],"historic":[95],"baseline":[96,136,227],"rate.":[97],"Baseline":[98],"perioperative":[102,201],"characteristics":[103],"compared.":[105],"RESULTS:":[106],"Seven":[107],"lower-mortality":[108,184],"identified":[111,195],"(n=331":[112],"patients)":[113],"had":[115],"an":[116],"rate":[119,180],"of":[120,171,216],"2.7%,":[121],"compared":[123,186],"13.3%":[125],"four":[128],"higher-mortality":[129,149,190],"(n=173":[131],"patients,":[132],"p<0.0001).":[133],"Of":[134],"all":[135],"examined,":[139],"only":[141],"factor":[142],"that":[143],"differed":[144],"between":[145,167,198,212],"lower-":[147],"was":[151,181],"postnatal":[152],"diagnosis":[153],"(18.4":[154],"versus":[155],"31.8%,":[156],"p=0.001).":[157],"In":[158],"multivariable":[159],"analysis,":[160],"there":[161],"remained":[162],"significant":[164],"difference":[166],"two":[169,214],"groups":[170,199,215],"after":[173],"adjusting":[174],"variable:":[177],"adjusted":[178],"2.8%":[182],"12.6%":[188],"centres,":[191],"p=0.003.":[192],"Secondary":[193],"analyses":[194],"multiple":[196],"practices":[202,239],"other":[204],"variables.":[205],"CONCLUSIONS:":[206],"Variation":[207],"these":[213],"does":[218],"not":[219],"appear":[220],"to":[221,234,240],"be":[222],"explained":[223],"by":[224],"factors.":[229],"Further":[230],"study":[231],"necessary":[233],"evaluate":[235],"identify":[241],"targets":[242],"improvement":[244],"efforts.":[245]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2018-06-29T00:00:00"}