{"id":"https://openalex.org/W4416637048","doi":"https://doi.org/10.1183/13993003.congress-2025.oa3308","title":"Night-to-night variability in Apnoea-Hypopnoea Index: Implications for Obstructive Sleep Apnoea diagnosis","display_name":"Night-to-night variability in Apnoea-Hypopnoea Index: Implications for Obstructive Sleep Apnoea diagnosis","publication_year":2025,"publication_date":"2025-09-27","ids":{"openalex":"https://openalex.org/W4416637048","doi":"https://doi.org/10.1183/13993003.congress-2025.oa3308"},"language":"en","primary_location":{"id":"doi:10.1183/13993003.congress-2025.oa3308","doi":"https://doi.org/10.1183/13993003.congress-2025.oa3308","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2025.oa3308","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":"Sleep science","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/A5103477826","display_name":"Sam R. Johnson","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sam Johnson","raw_affiliation_strings":["1Passion for Life Healthcare, Chester, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Passion for Life Healthcare, Chester, United Kingdom","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087958464","display_name":"Hector E. Romero","orcid":"https://orcid.org/0000-0002-8756-6992","observed_orcids":["https://orcid.org/0000-0002-8756-6992"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hector Romero","raw_affiliation_strings":["1Passion for Life Healthcare, Chester, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Passion for Life Healthcare, Chester, United Kingdom","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5120564075","display_name":"Philip Gillespie","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Philip Gillespie","raw_affiliation_strings":["1Passion for Life Healthcare, Chester, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Passion for Life Healthcare, Chester, United Kingdom","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056115727","display_name":"Richard Wiffen","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Richard Wiffen","raw_affiliation_strings":["1Passion for Life Healthcare, Chester, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"1Passion for Life Healthcare, Chester, United Kingdom","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003539289","display_name":"Ari R. Manuel","orcid":"https://orcid.org/0000-0002-7092-1687","observed_orcids":["https://orcid.org/0000-0002-7092-1687"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ari Manuel","raw_affiliation_strings":["2University of hospitals of Liverpool, Liverpool, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"2University of hospitals of Liverpool, Liverpool, United Kingdom","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087387768","display_name":"Matthew Palethorpe","orcid":"https://orcid.org/0000-0003-1970-1491","observed_orcids":["https://orcid.org/0000-0003-1970-1491"]},"institutions":[{"id":"https://openalex.org/I137265193","display_name":"University of Chester","ror":"https://ror.org/01drpwb22","country_code":"GB","type":"education","lineage":["https://openalex.org/I137265193"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Matthew Palethorpe","raw_affiliation_strings":["3University of Chester, Chester, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"3University of Chester, Chester, United Kingdom","institution_ids":["https://openalex.org/I137265193"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054743662","display_name":"Miche De Meyer","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2801227569","display_name":"Ghent University Hospital","ror":"https://ror.org/00xmkp704","country_code":"BE","type":"healthcare","lineage":["https://openalex.org/I2801227569"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Miche De Meyer","raw_affiliation_strings":["4AZ Jan Palfijn, Gent, Belgium"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"4AZ Jan Palfijn, Gent, Belgium","institution_ids":["https://openalex.org/I2801227569"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067036469","display_name":"Ning Ma","orcid":"https://orcid.org/0000-0002-4112-3109","observed_orcids":["https://orcid.org/0000-0002-4112-3109"]},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Ning Ma","raw_affiliation_strings":["5School of Computer Science, University of Sheffield, Sheffield, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5School of Computer Science, University of Sheffield, Sheffield, United Kingdom","institution_ids":["https://openalex.org/I91136226"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080527909","display_name":"Guy J. Brown","orcid":"https://orcid.org/0000-0001-8565-5476","observed_orcids":["https://orcid.org/0000-0001-8565-5476"]},"institutions":[{"id":"https://openalex.org/I91136226","display_name":"University of Sheffield","ror":"https://ror.org/05krs5044","country_code":"GB","type":"education","lineage":["https://openalex.org/I91136226"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Guy J Brown","raw_affiliation_strings":["5School of Computer Science, University of Sheffield, Sheffield, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5School of Computer Science, University of Sheffield, Sheffield, United Kingdom","institution_ids":["https://openalex.org/I91136226"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"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":"OA3308","last_page":"OA3308"},"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 (medical)"},"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 (medical)"},"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/T10316","display_name":"Sleep and related disorders","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11456","display_name":"Neuroscience of respiration and sleep","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/obstructive-sleep-apnea","display_name":"obstructive sleep apnea","score":0.9929999709129333},{"id":"https://openalex.org/keywords/apnea-hypopnea-index","display_name":"apnea-hypopnea index","score":0.9760000109672546},{"id":"https://openalex.org/keywords/night-to-night-variability","display_name":"night-to-night variability","score":0.9990000128746033},{"id":"https://openalex.org/keywords/osa-diagnosis","display_name":"OSA diagnosis","score":0.890999972820282},{"id":"https://openalex.org/keywords/home-sleep-testing","display_name":"home sleep testing","score":0.8080000281333923},{"id":"https://openalex.org/keywords/first-night-effect","display_name":"first-night effect","score":0.6439999938011169},{"id":"https://openalex.org/keywords/diagnostic-accuracy","display_name":"diagnostic accuracy","score":0.718999981880188}],"concepts":[{"id":"https://openalex.org/C2778205975","wikidata":"https://www.wikidata.org/wiki/Q1754874","display_name":"Polysomnography","level":3,"score":0.7229999899864197},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.7125999927520752},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.5400999784469604},{"id":"https://openalex.org/C40993552","wikidata":"https://www.wikidata.org/wiki/Q514654","display_name":"Gold standard (test)","level":2,"score":0.5212000012397766},{"id":"https://openalex.org/C72563966","wikidata":"https://www.wikidata.org/wiki/Q1303415","display_name":"Cohort","level":2,"score":0.4893999993801117},{"id":"https://openalex.org/C2780322006","wikidata":"https://www.wikidata.org/wiki/Q7539768","display_name":"Sleep study","level":4,"score":0.47209998965263367},{"id":"https://openalex.org/C2778996325","wikidata":"https://www.wikidata.org/wiki/Q422201","display_name":"Actigraphy","level":3,"score":0.42730000615119934},{"id":"https://openalex.org/C1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","level":1,"score":0.384799987077713},{"id":"https://openalex.org/C201903717","wikidata":"https://www.wikidata.org/wiki/Q1778788","display_name":"Cohort study","level":2,"score":0.36039999127388},{"id":"https://openalex.org/C2776035688","wikidata":"https://www.wikidata.org/wiki/Q1606558","display_name":"Affect (linguistics)","level":2,"score":0.3264999985694885},{"id":"https://openalex.org/C188394188","wikidata":"https://www.wikidata.org/wiki/Q744029","display_name":"Sleep medicine","level":4,"score":0.3237000107765198},{"id":"https://openalex.org/C187212893","wikidata":"https://www.wikidata.org/wiki/Q123028","display_name":"Pediatrics","level":1,"score":0.3075000047683716},{"id":"https://openalex.org/C2910364982","wikidata":"https://www.wikidata.org/wiki/Q35831","display_name":"Sleep Stages","level":4,"score":0.287200003862381},{"id":"https://openalex.org/C3018790630","wikidata":"https://www.wikidata.org/wiki/Q16255186","display_name":"Sleep disordered breathing","level":3,"score":0.2687000036239624},{"id":"https://openalex.org/C2777935920","wikidata":"https://www.wikidata.org/wiki/Q213600","display_name":"Sleep apnea","level":2,"score":0.26649999618530273},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.25859999656677246},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2524999976158142}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1183/13993003.congress-2025.oa3308","doi":"https://doi.org/10.1183/13993003.congress-2025.oa3308","is_oa":false,"landing_page_url":"https://doi.org/10.1183/13993003.congress-2025.oa3308","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":"Sleep science","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.9940000176429749,"display_name":"Good health and well-being"}],"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/W1604595107","https://openalex.org/W3096074698","https://openalex.org/W4410269239","https://openalex.org/W2973867788","https://openalex.org/W7164888192","https://openalex.org/W4410502389","https://openalex.org/W7125152459","https://openalex.org/W1966793833","https://openalex.org/W4406716024","https://openalex.org/W2373065085"],"abstract_inverted_index":{"Obstructive":[0],"Sleep":[1],"Apnoea":[2],"(OSA)":[3],"is":[4,19,28],"estimated":[5],"to":[6,91,105,163,176,215,223,238,243,249],"affect":[7],"1":[8,141],"billion":[9],"people":[10],"worldwide,":[11],"yet":[12],"remains":[13],"underdiagnosed.":[14],"The":[15,120],"Apnoea-Hypopnoea":[16],"Index":[17],"(AHI)":[18],"the":[20,107,218],"gold":[21],"standard":[22],"for":[23,52,70,77,207,220],"OSA":[24,71,186,208,251],"diagnosis,":[25,54],"however":[26],"it":[27],"typically":[29],"derived":[30],"from":[31],"polysomnography":[32],"(PSG)":[33],"or":[34,195],"home":[35],"sleep":[36,98],"studies":[37],"(HSS)":[38],"carried":[39],"out":[40],"over":[41,246],"a":[42,82,96,129,156,183],"single":[43],"night.":[44],"Night-to-night":[45,200],"variability":[46,201],"(NNV)":[47],"in":[48,56,65,185,202],"AHI":[49,66,87,110,136,203,211,245],"poses":[50,204],"challenges":[51,206],"accurate":[53],"particularly":[55],"patients":[57],"with":[58,128],"milder":[59],"disease.":[60],"This":[61],"study":[62],"investigates":[63],"NNV":[64,239],"and":[67,118,125,145,193,240],"its":[68],"implications":[69],"diagnosis.":[72,209,252],"Fifty-two":[73],"participants":[74,181],"were":[75,114],"monitored":[76],"two":[78],"consecutive":[79],"nights":[80,189,248],"(using":[81],"SOMNOtouch":[83],"RESP":[84],"HSS":[85],"device).":[86],"was":[88,103,137],"calculated":[89],"according":[90],"AASM":[92],"guidelines":[93],"(2012)":[94],"by":[95],"certified":[97],"technologist.":[99],"A":[100],"Bland-Altman":[101,153],"analysis":[102,154],"used":[104],"assess":[106],"agreement":[108,174],"between":[109,188,191],"measurements.":[111],"Statistical":[112],"analyses":[113],"performed":[115],"using":[116],"Python":[117],"SciPy.":[119],"cohort":[121],"included":[122],"29":[123],"males":[124],"23":[126],"females,":[127],"mean":[130],"age":[131],"of":[132,158,173,180],"42.3":[133],"years.":[134],"Mean":[135],"18.5":[138],"on":[139,147],"night":[140,148,168],"(0.3-113,":[142],"SE":[143,151],"3.5)":[144],"17.1":[146],"2":[149],"(0.5-104,":[150],"3.2).":[152],"revealed":[155],"bias":[157],"1.4":[159],"(95%":[160],"CI:":[161],"-0.57":[162],"3.39)":[164],"suggesting":[165],"no":[166],"first":[167],"effect,":[169],"but":[170],"wide":[171],"limits":[172],"(-12.5":[175],"15.3).":[177],"Notably,":[178],"33%":[179],"experienced":[182],"change":[184],"classification":[187],"(21%":[190],"none":[192],"mild":[194],"moderate)":[196],"highlighting":[197],"significant":[198,205],"NNV.":[199],"Single-night":[210],"measurements":[212],"may":[213,234],"lead":[214],"misclassification,":[216],"underscoring":[217],"need":[219],"multi-night":[221],"assessments":[222],"improve":[224,250],"diagnostic":[225],"accuracy.":[226],"Future":[227],"research":[228],"should":[229],"explore":[230],"alternative":[231],"metrics":[232],"that":[233],"be":[235],"less":[236],"susceptible":[237],"practical":[241],"technologies":[242],"record":[244],"multiple":[247]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2025-11-25T00:00:00"}
