{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T21:40:16Z","timestamp":1789681216768,"version":"4.0.1"},"reference-count":48,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2024,12,1]],"date-time":"2024-12-01T00:00:00Z","timestamp":1733011200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2024,12,1]],"date-time":"2024-12-01T00:00:00Z","timestamp":1733011200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2024,9,17]],"date-time":"2024-09-17T00:00:00Z","timestamp":1726531200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["clinicalkey.fr","clinicalkey.jp","clinicalkey.es","clinicalkey.com.au","clinicalkey.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Sleep Medicine"],"published-print":{"date-parts":[[2024,12]]},"DOI":"10.1016\/j.sleep.2024.09.026","type":"journal-article","created":{"date-parts":[[2024,9,17]],"date-time":"2024-09-17T21:47:42Z","timestamp":1726609662000},"page":"127-133","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":5,"special_numbering":"C","title":["Nocturnal sleep phenotypes in idiopathic hypersomnia \u2013 A data-driven cluster analysis"],"prefix":"10.1016","volume":"124","author":[{"given":"Paul Christian","family":"Baier","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hildur","family":"Sahlstr\u00f6m","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Agneta","family":"Markstr\u00f6m","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomas","family":"Furmark","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3075-4861","authenticated-orcid":false,"given":"Kristoffer","family":"Bothelius","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.sleep.2024.09.026_bib1","series-title":"International classification of sleep disorders","year":"2014"},{"key":"10.1016\/j.sleep.2024.09.026_bib2","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1016\/j.sleh.2019.09.004","article-title":"Excessive sleepiness and associated symptoms in the U.S. adult population: prevalence, correlates, and comorbidity","volume":"6","author":"Kolla","year":"2020","journal-title":"Sleep Heal"},{"key":"10.1016\/j.sleep.2024.09.026_bib3","doi-asserted-by":"crossref","first-page":"1372","DOI":"10.1038\/s41598-017-01547-0","article-title":"Incidence, worsening and risk factors of daytime sleepiness in a population-based 5-year longitudinal study","volume":"7","author":"Jaussent","year":"2017","journal-title":"Sci Rep"},{"key":"10.1016\/j.sleep.2024.09.026_bib4","doi-asserted-by":"crossref","first-page":"1288","DOI":"10.1016\/j.mayocp.2020.08.033","article-title":"Excessive daytime sleepiness A clinical review","volume":"96","author":"Gandhi","year":"2021","journal-title":"Mayo Clin Proc"},{"key":"10.1016\/j.sleep.2024.09.026_bib5","doi-asserted-by":"crossref","DOI":"10.1016\/j.neubiorev.2024.105575","article-title":"A narrative review on insomnia and hypersomnolence within Major Depressive Disorder and bipolar disorder: a proposal for a novel psychometric protocol","volume":"158","author":"Guerrera","year":"2024","journal-title":"Neurosci Biobehav Rev"},{"key":"10.1016\/j.sleep.2024.09.026_bib6","doi-asserted-by":"crossref","first-page":"S2","DOI":"10.1016\/S1389-9457(04)90001-9","article-title":"Sleep, sleep disorders and hypocretin (orexin)","volume":"5","author":"Mignot","year":"2004","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib7","doi-asserted-by":"crossref","DOI":"10.1016\/j.smrv.2020.101306","article-title":"Diagnosis of central disorders of hypersomnolence: a reappraisal by European experts","volume":"52","author":"Lammers","year":"2020","journal-title":"Sleep Med Rev"},{"key":"10.1016\/j.sleep.2024.09.026_bib8","doi-asserted-by":"crossref","DOI":"10.1016\/j.smrv.2022.101709","article-title":"Clinical considerations for the diagnosis of idiopathic hypersomnia","volume":"66","author":"Dauvilliers","year":"2022","journal-title":"Sleep Med Rev"},{"key":"10.1016\/j.sleep.2024.09.026_bib9","doi-asserted-by":"crossref","first-page":"1423","DOI":"10.1093\/brain\/120.8.1423","article-title":"Idiopathic hypersomnia. A series of 42 patients","volume":"120","author":"Bassetti","year":"1997","journal-title":"Brain"},{"key":"10.1016\/j.sleep.2024.09.026_bib10","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1212\/WNL.0000000000003432","article-title":"Comorbidity between central disorders of hypersomnolence and immune-based disorders","volume":"88","author":"Barateau","year":"2017","journal-title":"Neurology"},{"key":"10.1016\/j.sleep.2024.09.026_bib11","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1016\/j.smrv.2015.08.007","article-title":"Idiopathic hypersomnia","volume":"29","author":"Billiard","year":"2016","journal-title":"Sleep Med Rev"},{"key":"10.1016\/j.sleep.2024.09.026_bib12","doi-asserted-by":"crossref","first-page":"S103","DOI":"10.21037\/jtd.2018.01.11","article-title":"Delayed sleep-wake phase disorder","volume":"10","author":"Nesbitt","year":"2018","journal-title":"J Thorac Dis"},{"key":"10.1016\/j.sleep.2024.09.026_bib13","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.jad.2015.11.025","article-title":"Delayed sleep phase: an important circadian subtype of sleep disturbance in bipolar disorders","volume":"191","author":"Steinan","year":"2016","journal-title":"J Affect Disord"},{"key":"10.1016\/j.sleep.2024.09.026_bib14","doi-asserted-by":"crossref","first-page":"471","DOI":"10.1016\/j.euroneuro.2019.02.011","article-title":"The implications of hypersomnia in the context of major depression: results from a large, international, observational study","volume":"29","author":"Murru","year":"2019","journal-title":"Eur Neuropsychopharmacol"},{"key":"10.1016\/j.sleep.2024.09.026_bib15","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/j.psychres.2006.02.009","article-title":"Possible confusion between primary hypersomnia and adult attention-deficit\/hyperactivity disorder","volume":"143","author":"Oosterloo","year":"2006","journal-title":"Psychiatr Res"},{"key":"10.1016\/j.sleep.2024.09.026_bib16","doi-asserted-by":"crossref","first-page":"e1754","DOI":"10.1212\/WNL.0000000000007264","article-title":"Measurement of symptoms in idiopathic hypersomnia: the idiopathic hypersomnia severity scale","volume":"92","author":"Dauvilliers","year":"2019","journal-title":"Neurology"},{"key":"10.1016\/j.sleep.2024.09.026_bib17","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1016\/j.sleep.2023.07.016","article-title":"How reliable is a simplified MSLT nap termination protocol?","volume":"109","author":"Siegenthaler","year":"2023","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib18","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.sleep.2023.07.029","article-title":"Repeated polysomnography and multiple sleep latency test in narcolepsy type 1 and other hypersomnolence disorders","volume":"110","author":"Torstensen","year":"2023","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib19","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/j.sleep.2018.12.013","article-title":"Demographic and nap-related variance of the MSLT: results from 2,498 suspected hypersomnia patients Clinical MSLT variance","volume":"55","author":"Cairns","year":"2019","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib20","doi-asserted-by":"crossref","first-page":"65","DOI":"10.5664\/jcsm.6882","article-title":"The MSLT is repeatable in narcolepsy type 1 but not narcolepsy type 2: a retrospective patient study","volume":"14","author":"Ruoff","year":"2018","journal-title":"J Clin Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib21","doi-asserted-by":"crossref","DOI":"10.1093\/sleep\/zsx164","article-title":"Test\u2013retest reliability of the multiple sleep latency test in central disorders of hypersomnolence","volume":"40","author":"Lopez","year":"2017","journal-title":"Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib22","doi-asserted-by":"crossref","first-page":"789","DOI":"10.5664\/jcsm.2922","article-title":"Test-retest reliability of the multiple sleep latency test in narcolepsy without cataplexy and idiopathic hypersomnia","author":"Trotti","year":"2013","journal-title":"J Clin Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib23","doi-asserted-by":"crossref","first-page":"311","DOI":"10.2147\/NSS.S266090","article-title":"Idiopathic hypersomnia: historical account, critical review of current tests and criteria, diagnostic evaluation in the absence of biological markers and robust electrophysiological diagnostic criteria","volume":"14","author":"Billiard","year":"2022","journal-title":"Nat Sci Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib24","doi-asserted-by":"crossref","first-page":"753","DOI":"10.1093\/sleep\/32.6.753","article-title":"Idiopathic hypersomnia with and without long sleep time: a controlled series of 75 patients","volume":"32","author":"Vernet","year":"2009","journal-title":"Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib25","first-page":"562","article-title":"Idiopathic hypersomnia: clinical features and response to treatment","volume":"5","author":"Ali","year":"2009","journal-title":"J Clin Sleep Medicine Jcsm Official Publ Am Acad Sleep Medicine"},{"key":"10.1016\/j.sleep.2024.09.026_bib26","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1111\/j.1479-8425.2011.00503.x","article-title":"Wake\u2013REM sleep transitions for measuring REM sleep disturbance: comparison between narcolepsy, idiopathic hypersomnia and healthy controls","volume":"9","author":"Weinhold","year":"2011","journal-title":"Sleep Biol Rhythm"},{"key":"10.1016\/j.sleep.2024.09.026_bib27","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.sleep.2017.01.021","article-title":"Sleep\u2013wake stability in narcolepsy patients with normal, low and unmeasurable hypocretin levels","volume":"34","author":"Hansen","year":"2017","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib28","doi-asserted-by":"crossref","first-page":"240","DOI":"10.1016\/j.pscychresns.2012.03.001","article-title":"Altered slow wave activity in major depressive disorder with hypersomnia: a high density EEG pilot study","volume":"201","author":"Plante","year":"2012","journal-title":"Psychiatry Res Neuroimaging"},{"key":"10.1016\/j.sleep.2024.09.026_bib29","doi-asserted-by":"crossref","DOI":"10.1016\/j.smrv.2023.101766","article-title":"Update on the treatment of idiopathic hypersomnia: progress, challenges, and expert opinion","volume":"69","author":"Arnulf","year":"2023","journal-title":"Sleep Med Rev"},{"key":"10.1016\/j.sleep.2024.09.026_bib30","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1080\/15402002.2015.1120201","article-title":"Behavioral sleep medicine services for hypersomnia disorders: a survey study","volume":"15","author":"Neikrug","year":"2017","journal-title":"Behav Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib31","doi-asserted-by":"crossref","DOI":"10.1212\/WNL.0000000000200519","article-title":"Data-driven phenotyping of central disorders of hypersomnolence with unsupervised clustering","volume":"98","author":"Gool","year":"2022","journal-title":"Neurology"},{"key":"10.1016\/j.sleep.2024.09.026_bib32","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1016\/j.sleep.2014.09.016","article-title":"Narcolepsy with and without cataplexy, idiopathic hypersomnia with and without long sleep time: a cluster analysis","volume":"16","author":"\u0160onka","year":"2015","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib33","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/j.sleep.2019.06.015","article-title":"Identifying subtypes of Hypersomnolence Disorder: a clustering analysis","volume":"64","author":"Cook","year":"2019","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib34","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1093\/sleep\/15.4.376","article-title":"Reliability and factor analysis of the Epworth sleepiness scale","volume":"15","author":"Johns","year":"1992","journal-title":"Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib35","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1016\/S1389-9457(00)00065-4","article-title":"Validation of the Insomnia Severity Index as an outcome measure for insomnia research","volume":"2","author":"Bastien","year":"2001","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib36","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/S0165-0327(00)00242-1","article-title":"A comparison between the beck depression inventory (BDI) and the self-rating version of the Montgomery \u00c5sberg depression rating scale (MADRS)","volume":"64","author":"Svanborg","year":"2001","journal-title":"J Affect Disord"},{"key":"10.1016\/j.sleep.2024.09.026_bib37","doi-asserted-by":"crossref","first-page":"283","DOI":"10.5271\/sjweh.2608","article-title":"A diurnal type scale. Construction, consistency and validation in shift work","volume":"6","author":"Torsvall","year":"1980","journal-title":"Scand J Work Environ Health"},{"key":"10.1016\/j.sleep.2024.09.026_bib38","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1017\/S0033291704002892","article-title":"The World Health Organization adult ADHD self-report scale (ASRS): a short screening scale for use in the general population","volume":"35","author":"Kessler","year":"2005","journal-title":"Psychol Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib39","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1111\/j.1365-2869.1994.tb00104.x","article-title":"The Ullanlinna Narcolepsy Scale: validation of a measure of symptoms in the narcoleptic syndrome","volume":"3","author":"Hublin","year":"1994","journal-title":"J Sleep Res"},{"key":"10.1016\/j.sleep.2024.09.026_bib40","doi-asserted-by":"crossref","first-page":"1815","DOI":"10.5665\/sleep.5170","article-title":"Measuring acceptance of sleep difficulties: the development of the sleep problem acceptance questionnaire","volume":"38","author":"Bothelius","year":"2015","journal-title":"Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib41","first-page":"391","article-title":"Issues in pain measurement. Advances in pain research and therapy","volume":"vol. 12","author":"Loeser","year":"1989"},{"key":"10.1016\/j.sleep.2024.09.026_bib42","doi-asserted-by":"crossref","first-page":"1085","DOI":"10.3389\/fpsyg.2020.01085","article-title":"Using two-step cluster analysis and latent class cluster analysis to classify the cognitive heterogeneity of cross-diagnostic psychiatric inpatients","volume":"11","author":"Benassi","year":"2020","journal-title":"Front Psychol"},{"key":"10.1016\/j.sleep.2024.09.026_bib43","series-title":"Data mining","first-page":"443","author":"Han","year":"2012"},{"key":"10.1016\/j.sleep.2024.09.026_bib44","first-page":"13","article-title":"Cluster analysis in neuropsychological research","author":"Cross","year":"2013","journal-title":"Recent Applications"},{"key":"10.1016\/j.sleep.2024.09.026_bib45","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1186\/1471-2288-14-113","article-title":"A comparison of three clustering methods for finding subgroups in MRI, SMS or clinical data: SPSS TwoStep Cluster analysis, Latent Gold and SNOB","volume":"14","author":"Kent","year":"2014","journal-title":"BMC Med Res Methodol"},{"key":"10.1016\/j.sleep.2024.09.026_bib46","doi-asserted-by":"crossref","DOI":"10.1093\/sleep\/zsaa044","article-title":"To split or to lump? Classifying the central disorders of hypersomnolence","volume":"43","author":"Fronczek","year":"2020","journal-title":"Sleep"},{"key":"10.1016\/j.sleep.2024.09.026_bib47","doi-asserted-by":"crossref","first-page":"378","DOI":"10.1016\/j.sleep.2023.12.005","article-title":"Connecting the dots: an updated review of the role of autoimmunity in narcolepsy and emerging immunotherapeutic approaches","volume":"113","author":"Valizadeh","year":"2024","journal-title":"Sleep Med"},{"key":"10.1016\/j.sleep.2024.09.026_bib48","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1016\/j.sleep.2020.08.034","article-title":"Disease symptomatology and response to treatment in people with idiopathic hypersomnia: initial data from the Hypersomnia Foundation registry","volume":"75","author":"Trotti","year":"2020","journal-title":"Sleep Med"}],"container-title":["Sleep Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1389945724004477?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1389945724004477?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,1,25]],"date-time":"2025-01-25T04:18:00Z","timestamp":1737778680000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1389945724004477"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,12]]},"references-count":48,"alternative-id":["S1389945724004477"],"URL":"https:\/\/doi.org\/10.1016\/j.sleep.2024.09.026","relation":{},"ISSN":["1389-9457"],"issn-type":[{"value":"1389-9457","type":"print"}],"subject":[],"published":{"date-parts":[[2024,12]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Nocturnal sleep phenotypes in idiopathic hypersomnia \u2013 A data-driven cluster analysis","name":"articletitle","label":"Article Title"},{"value":"Sleep Medicine","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.sleep.2024.09.026","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2024 The Authors. Published by Elsevier B.V.","name":"copyright","label":"Copyright"}]}}