{"id":"https://openalex.org/W2746610717","doi":"https://doi.org/10.3390/e19090447","title":"Irregularity and Variability Analysis of Airflow Recordings to Facilitate the Diagnosis of Paediatric Sleep Apnoea-Hypopnoea Syndrome","display_name":"Irregularity and Variability Analysis of Airflow Recordings to Facilitate the Diagnosis of Paediatric Sleep Apnoea-Hypopnoea Syndrome","publication_year":2017,"publication_date":"2017-08-26","ids":{"openalex":"https://openalex.org/W2746610717","doi":"https://doi.org/10.3390/e19090447","mag":"2746610717"},"language":"en","primary_location":{"id":"doi:10.3390/e19090447","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19090447","pdf_url":null,"source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.3390/e19090447","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5066312205","display_name":"Ver\u00f3nica Barroso-Garc\u00eda","orcid":"https://orcid.org/0000-0001-5648-206X"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Ver\u00f3nica Barroso-Garc\u00eda","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain"],"raw_orcid":"https://orcid.org/0000-0001-5648-206X","affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012085808","display_name":"Gonzalo C. Guti\u00e9rrez\u2010Tobal","orcid":"https://orcid.org/0000-0002-1237-3424"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Gonzalo Guti\u00e9rrez-Tobal","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain"],"raw_orcid":"https://orcid.org/0000-0002-1237-3424","affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038079734","display_name":"David Gozal","orcid":"https://orcid.org/0000-0003-3332-1057"},"institutions":[{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Leila Kheirandish-Gozal","raw_affiliation_strings":["Section of Sleep Medicine, Department of Paediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL 60637, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Section of Sleep Medicine, Department of Paediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL 60637, USA","institution_ids":["https://openalex.org/I40347166"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005396204","display_name":"Daniel \u00c1lvarez","orcid":"https://orcid.org/0000-0003-1027-2395"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]},{"id":"https://openalex.org/I4210158107","display_name":"Hospital Universitario R\u00edo Hortega","ror":"https://ror.org/05jk45963","country_code":"ES","type":"healthcare","lineage":["https://openalex.org/I4210158107"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Daniel \u00c1lvarez","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain"],"raw_orcid":"https://orcid.org/0000-0003-1027-2395","affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]},{"raw_affiliation_string":"Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain","institution_ids":["https://openalex.org/I4210158107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026434545","display_name":"Fernando Vaquerizo-Villar","orcid":"https://orcid.org/0000-0002-5898-2006"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Fernando Vaquerizo-Villar","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062150613","display_name":"Andrea Crespo","orcid":"https://orcid.org/0000-0002-2709-5797"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]},{"id":"https://openalex.org/I4210158107","display_name":"Hospital Universitario R\u00edo Hortega","ror":"https://ror.org/05jk45963","country_code":"ES","type":"healthcare","lineage":["https://openalex.org/I4210158107"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Andrea Crespo","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]},{"raw_affiliation_string":"Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain","institution_ids":["https://openalex.org/I4210158107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016104659","display_name":"F\u00e9lix del Campo","orcid":"https://orcid.org/0000-0002-4554-2167"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]},{"id":"https://openalex.org/I4210158107","display_name":"Hospital Universitario R\u00edo Hortega","ror":"https://ror.org/05jk45963","country_code":"ES","type":"healthcare","lineage":["https://openalex.org/I4210158107"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"F\u00e9lix Del Campo","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain"],"raw_orcid":"https://orcid.org/0000-0002-4554-2167","affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]},{"raw_affiliation_string":"Servicio de Neumolog\u00eda, Hospital Universitario R\u00edo Hortega, Valladolid 47012, Spain","institution_ids":["https://openalex.org/I4210158107"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043623030","display_name":"David Gozal","orcid":"https://orcid.org/0000-0001-8195-6036"},"institutions":[{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"David Gozal","raw_affiliation_strings":["Section of Sleep Medicine, Department of Paediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL 60637, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Section of Sleep Medicine, Department of Paediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL 60637, USA","institution_ids":["https://openalex.org/I40347166"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043513390","display_name":"Roberto Hornero","orcid":"https://orcid.org/0000-0001-9915-2570"},"institutions":[{"id":"https://openalex.org/I108103353","display_name":"Universidad de Valladolid","ror":"https://ror.org/01fvbaw18","country_code":"ES","type":"education","lineage":["https://openalex.org/I108103353"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Roberto Hornero","raw_affiliation_strings":["Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain"],"raw_orcid":"https://orcid.org/0000-0001-9915-2570","affiliations":[{"raw_affiliation_string":"Biomedical Engineering Group, E.T.S.I. Telecomunicaci\u00f3n, Universidad de Valladolid, Valladolid 47011 Spain","institution_ids":["https://openalex.org/I108103353"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":9,"corresponding_author_ids":["https://openalex.org/A5066312205"],"corresponding_institution_ids":["https://openalex.org/I108103353"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":0.9444,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.75260056,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"19","issue":"9","first_page":"447","last_page":"447"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10234","display_name":"Obstructive Sleep Apnea Research","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"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/T10234","display_name":"Obstructive Sleep Apnea Research","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology"},"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/T11456","display_name":"Neuroscience of respiration and sleep","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/2807","display_name":"Endocrine and Autonomic Systems"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10322","display_name":"Respiratory Support and Mechanisms","score":0.9939000010490417,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/logistic-regression","display_name":"Logistic regression","score":0.6274274587631226},{"id":"https://openalex.org/keywords/spectral-analysis","display_name":"Spectral analysis","score":0.4941911995410919},{"id":"https://openalex.org/keywords/approximate-entropy","display_name":"Approximate entropy","score":0.47925448417663574},{"id":"https://openalex.org/keywords/stepwise-regression","display_name":"Stepwise regression","score":0.47549399733543396},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.44576936960220337},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.419683039188385},{"id":"https://openalex.org/keywords/airflow","display_name":"Airflow","score":0.4104500114917755},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.40502190589904785},{"id":"https://openalex.org/keywords/time-series","display_name":"Time series","score":0.118155837059021},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.09046375751495361},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.08724614977836609}],"concepts":[{"id":"https://openalex.org/C151956035","wikidata":"https://www.wikidata.org/wiki/Q1132755","display_name":"Logistic regression","level":2,"score":0.6274274587631226},{"id":"https://openalex.org/C2983668108","wikidata":"https://www.wikidata.org/wiki/Q280453","display_name":"Spectral analysis","level":3,"score":0.4941911995410919},{"id":"https://openalex.org/C86859247","wikidata":"https://www.wikidata.org/wiki/Q4781760","display_name":"Approximate entropy","level":3,"score":0.47925448417663574},{"id":"https://openalex.org/C170964787","wikidata":"https://www.wikidata.org/wiki/Q7611170","display_name":"Stepwise regression","level":2,"score":0.47549399733543396},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.44576936960220337},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.419683039188385},{"id":"https://openalex.org/C116067010","wikidata":"https://www.wikidata.org/wiki/Q4698686","display_name":"Airflow","level":2,"score":0.4104500114917755},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.40502190589904785},{"id":"https://openalex.org/C151406439","wikidata":"https://www.wikidata.org/wiki/Q186588","display_name":"Time series","level":2,"score":0.118155837059021},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.09046375751495361},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08724614977836609},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C32891209","wikidata":"https://www.wikidata.org/wiki/Q483666","display_name":"Spectroscopy","level":2,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3390/e19090447","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19090447","pdf_url":null,"source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:c8a6bf543ae344ad9c4be512b593029a","is_oa":true,"landing_page_url":"https://doaj.org/article/c8a6bf543ae344ad9c4be512b593029a","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 19, Iss 9, p 447 (2017)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1099-4300/19/9/447/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/e19090447","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy; Volume 19; Issue 9; Pages: 447","raw_type":"Text"},{"id":"pmh:oai:uvadoc.uva.es:10324/56750","is_oa":true,"landing_page_url":"https://uvadoc.uva.es/handle/10324/56750","pdf_url":null,"source":{"id":"https://openalex.org/S4306401553","display_name":"UVaDOC UVaDOC University of Valladolid Documentary Repository (University of Valladolid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I108103353","host_organization_name":"Universidad de Valladolid","host_organization_lineage":["https://openalex.org/I108103353"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"doi:10.3390/e19090447","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e19090447","pdf_url":null,"source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3288388987","display_name":null,"funder_award_id":"158/2015","funder_id":"https://openalex.org/F4320324494","funder_display_name":"Sociedad Espa\u00f1ola de Neumolog\u00eda y Cirug\u00eda Tor\u00e1cica"},{"id":"https://openalex.org/G3701294591","display_name":null,"funder_award_id":"IJCI-2014-22664","funder_id":"https://openalex.org/F4320321837","funder_display_name":"Ministerio de Econom\u00eda y Competitividad"},{"id":"https://openalex.org/G7574005054","display_name":null,"funder_award_id":"1R01HL130984","funder_id":"https://openalex.org/F4320332161","funder_display_name":"National Institutes of Health"}],"funders":[{"id":"https://openalex.org/F4320321837","display_name":"Ministerio de Econom\u00eda y Competitividad","ror":"https://ror.org/034900433"},{"id":"https://openalex.org/F4320324494","display_name":"Sociedad Espa\u00f1ola de Neumolog\u00eda y Cirug\u00eda Tor\u00e1cica","ror":"https://ror.org/028h6g607"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W10025965","https://openalex.org/W275101382","https://openalex.org/W1479317506","https://openalex.org/W1545241942","https://openalex.org/W1912456990","https://openalex.org/W1971815727","https://openalex.org/W1972598542","https://openalex.org/W1985559945","https://openalex.org/W1987679119","https://openalex.org/W1993546698","https://openalex.org/W1995649898","https://openalex.org/W2006640824","https://openalex.org/W2007477980","https://openalex.org/W2017707261","https://openalex.org/W2024740006","https://openalex.org/W2028791472","https://openalex.org/W2030158364","https://openalex.org/W2041154980","https://openalex.org/W2042902807","https://openalex.org/W2076626777","https://openalex.org/W2088857433","https://openalex.org/W2090122914","https://openalex.org/W2101166304","https://openalex.org/W2104960492","https://openalex.org/W2106401521","https://openalex.org/W2106822551","https://openalex.org/W2116496903","https://openalex.org/W2124630796","https://openalex.org/W2129613547","https://openalex.org/W2130124185","https://openalex.org/W2130465845","https://openalex.org/W2140143924","https://openalex.org/W2141584375","https://openalex.org/W2142841865","https://openalex.org/W2167597278","https://openalex.org/W2170268036","https://openalex.org/W2190236223","https://openalex.org/W2291983068","https://openalex.org/W2410659187","https://openalex.org/W2411081027","https://openalex.org/W2484728946","https://openalex.org/W2998216295","https://openalex.org/W4243260104","https://openalex.org/W4246878786","https://openalex.org/W4285719527","https://openalex.org/W4294830572","https://openalex.org/W4299689471","https://openalex.org/W6600413673","https://openalex.org/W7066667914"],"related_works":["https://openalex.org/W1884358801","https://openalex.org/W1871897844","https://openalex.org/W3136161187","https://openalex.org/W2383145494","https://openalex.org/W1574918455","https://openalex.org/W2087734068","https://openalex.org/W4214567198","https://openalex.org/W2388138725","https://openalex.org/W4224257258","https://openalex.org/W2116656460"],"abstract_inverted_index":{"The":[0,39,53],"aim":[1],"of":[2,10,14,57,62,84,100,193],"this":[3],"paper":[4],"is":[5,46],"to":[6,79,113,183],"evaluate":[7],"the":[8,163,191],"evolution":[9],"irregularity":[11,81,120,177],"and":[12,74,82,86,97,109,121,126,159,169,178],"variability":[13,42,83,123,128,179],"airflow":[15],"(AF)":[16],"signals":[17],"as":[18,131],"sleep":[19],"apnoea-hypopnoea":[20,132],"syndrome":[21],"(SAHS)":[22],"severity":[23,146],"increases":[24],"in":[25,124,129,141,187,199,203],"children.":[26,204],"We":[27],"analyzed":[28],"501":[29],"AF":[30,85,188],"recordings":[31],"from":[32,48],"children":[33,142],"6.2":[34],"\u00b1":[35],"3.4":[36],"years":[37],"old.":[38],"respiratory":[40],"rate":[41],"(RRV)":[43],"signal,":[44],"which":[45],"obtained":[47],"AF,":[49,125],"was":[50,135],"also":[51],"estimated.":[52],"proposed":[54],"methodology":[55],"consisted":[56],"three":[58],"phases:":[59],"(i)":[60],"extraction":[61],"spectral":[63,67,71],"entropy":[64,68,72],"(SE1),":[65],"quadratic":[66],"(SE2),":[69],"cubic":[70],"(SE3),":[73],"central":[75],"tendency":[76],"measure":[77],"(CTM)":[78],"quantify":[80],"RRV;":[87],"(ii)":[88],"feature":[89],"selection":[90],"with":[91,143],"forward":[92],"stepwise":[93],"logistic":[94,103],"regression":[95,104],"(FSLR),":[96],"(iii)":[98],"classification":[99],"subjects":[101],"using":[102],"(LR).":[105],"SE1,":[106],"SE2,":[107],"SE3,":[108],"CTM":[110],"were":[111,139],"used":[112],"conduct":[114],"exploratory":[115],"analyses":[116],"that":[117,176],"showed":[118],"increasing":[119,127],"decreasing":[122],"RRV":[130],"index":[133],"(AHI)":[134],"higher.":[136],"These":[137,173],"tendencies":[138],"clearer":[140],"a":[144],"higher":[145],"degree":[147],"(from":[148],"AHI":[149,164],"\u2265":[150],"5":[151],"events/hour).":[152],"Binary":[153],"LR":[154],"models":[155],"achieved":[156],"60%,":[157],"76%,":[158],"80%":[160],"accuracy":[161],"for":[162],"cutoff":[165],"points":[166],"1,":[167],"5,":[168],"10":[170],"e/h,":[171],"respectively.":[172],"results":[174],"suggest":[175],"measures":[180],"are":[181],"able":[182],"characterize":[184],"paediatric":[185],"SAHS":[186,202],"recordings.":[189],"Hence,":[190],"use":[192],"these":[194],"approaches":[195],"could":[196],"be":[197],"helpful":[198],"automatically":[200],"detecting":[201]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2017-08-31T00:00:00"}
