{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T00:20:27Z","timestamp":1778631627611,"version":"3.51.4"},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,8,2]],"date-time":"2017-08-02T00:00:00Z","timestamp":1501632000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Clinical Respiratory J"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The purpose of this study was to detect treatable sleep disorders among patients complaining of chronic fatigue by using sleep questionnaires and polysomnography.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients were referred to hospital for investigations and rehabilitation because of a suspected diagnosis of myalgic encephalomyelitis\/chronic fatigue syndrome (ME\/CFS). The criteria for further referral to full\u2010night polysomnography (PSG) were symptoms of excessive daytime sleepiness and\/or tiredness in the questionnaires.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of a total of 381 patients, 78 (20.5%) patients underwent PSG: 66 women and 12 men, mean age 48.6\u00a0years, standard deviation \u00b19.9\u00a0years. On the basis of the PSG, 31 (40.3%) patients were diagnosed with obstructive sleep apnoea, 7 (8.9%) patients with periodic limb movement disorder, 32 (41.0%) patients with restless legs syndrome and 54 (69.3%) patients had one or more other sleep disorder. All patients were grouped into those who fulfilled the diagnostic criteria for ME\/CFS (<jats:italic>n<\/jats:italic>\u00a0=\u00a055, 70.5%) and those who did not (<jats:italic>n<\/jats:italic>\u00a0=\u00a023, 29.5%). The latter group had significantly higher respiratory (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.01) and total arousal (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.009) indexes and a higher oxygen desaturation index (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.009).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>More than half of these chronic fatigue patients, who also have excessive daytime sleepiness and\/or tiredness, were diagnosed with sleep disorders such as obstructive sleep apnoea, periodic limb movement disorder and\/or restless legs syndrome. Patients with such complaints should undergo polysomnography, fill in questionnaires and be offered treatment for sleep disorders before the diagnose ME\/CFS is set.<\/jats:p><\/jats:sec>","DOI":"10.1111\/crj.12667","type":"journal-article","created":{"date-parts":[[2017,7,28]],"date-time":"2017-07-28T08:38:39Z","timestamp":1501231119000},"page":"1389-1397","source":"Crossref","is-referenced-by-count":16,"title":["Sleep patterns among patients with chronic fatigue: A polysomnography\u2010based study"],"prefix":"10.1111","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6003-4435","authenticated-orcid":false,"given":"Evelina","family":"Pajediene","sequence":"first","affiliation":[{"name":"Department of Neurology, Kaunas Clinics Hospital of Lithuanian University of Health Sciences Kaunas Lithuania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Indre","family":"Bileviciute\u2010Ljungar","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, Karolinska Institutet Stockholm Sweden"},{"name":"Department of Rehabilitation Medicine Danderyd University Hospital Stockholm Sweden"},{"name":"Department of Medical and Health Sciences, Faculty of Medicine and Health Sciences Link\u00f6ping University, Pain and Rehabilitation Centre, Anaesthetics, Operations and Specialty Surgery Centre, Region \u00d6stergotland Link\u00f6ping Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Danielle","family":"Friberg","sequence":"additional","affiliation":[{"name":"Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Otorhinolaryngology Karolinska University Hospital Stockholm 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