{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T16:15:43Z","timestamp":1792512943313,"version":"4.5.0"},"reference-count":41,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,5,16]],"date-time":"2018-05-16T00:00:00Z","timestamp":1526428800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Sleep Research"],"published-print":{"date-parts":[[2018,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Non\u2010restorative sleep is a hallmark symptom of chronic fatigue syndrome\/myalgic encephalomyelitis. However, little is known about self\u2010reported sleep disturbances in these subjects. This study aimed to assess the self\u2010reported sleep quality and its impact on quality of life in a Spanish community\u2010based chronic fatigue syndrome\/myalgic encephalomyelitis cohort. A prospective cross\u2010sectional cohort study was conducted in 1,455 Spanish chronic fatigue syndrome\/myalgic encephalomyelitis patients. Sleep quality, fatigue, pain, functional capacity impairment, psychopathological status, anxiety\/depression and health\u2010related quality of life were assessed using validated subjective measures. The frequencies of muscular, cognitive, neurological, autonomic and immunological symptom clusters were above 80%. High scores were recorded for pain, fatigue, psychopathological status, anxiety\/depression, and low scores for functional capacity and quality of life, all of which correlated significantly (all <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.01) with quality of sleep as measured by the Pittsburgh Sleep Quality Index. Multivariate regression analysis showed that after adjusting for age and gender, the pain intensity (odds ratio, 1.11; <jats:italic>p\u00a0&lt;<\/jats:italic>0.05), psychopathological status (odds ratio, 1.85; <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.001), fibromyalgia (odds ratio, 1.39; <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.05), severe autonomic dysfunction (odds ratio, 1.72; <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.05), poor functional capacity (odds ratio, 0.98; <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.05) and quality of life (odds ratio, 0.96; both <jats:italic>p\u00a0&lt;\u00a0<\/jats:italic>0.001) were significantly associated with poor sleep quality. These findings suggest that this large chronic fatigue syndrome\/myalgic encephalomyelitis sample presents poor sleep quality, as assessed by the Pittsburgh Sleep Quality Index, and that this poor sleep quality is associated with many aspects of quality of life.<\/jats:p>","DOI":"10.1111\/jsr.12703","type":"journal-article","created":{"date-parts":[[2018,5,17]],"date-time":"2018-05-17T03:04:01Z","timestamp":1526526241000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Poor self\u2010reported sleep quality and health\u2010related quality of life in patients with chronic fatigue syndrome\/myalgic encephalomyelitis"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2481-3052","authenticated-orcid":false,"given":"Jes\u00fas","family":"Castro\u2010Marrero","sequence":"first","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria C.","family":"Zaragoz\u00e1","sequence":"additional","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"},{"name":"Clinical Research Department Laboratorios Vi\u00f1as Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergio","family":"Gonz\u00e1lez\u2010Garcia","sequence":"additional","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luisa","family":"Aliste","sequence":"additional","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naia","family":"S\u00e1ez\u2010Franc\u00e0s","sequence":"additional","affiliation":[{"name":"Psychiatry Unit Sant Rafael Hospital (FIDMAG) Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Odile","family":"Romero","sequence":"additional","affiliation":[{"name":"Sleep Unit Clinical Neurophysiology Department Vall d'Hebron University Hospital Universitat Aut\u00f2noma de Barcelona Barcelona Spain"},{"name":"Instituto de Salud Carlos III CIBER Enfermedades Respiratorias (CIBERES) Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex","family":"Ferr\u00e9","sequence":"additional","affiliation":[{"name":"Sleep Unit Clinical Neurophysiology Department Vall d'Hebron University Hospital Universitat Aut\u00f2noma de Barcelona Barcelona Spain"},{"name":"Instituto de Salud Carlos III CIBER Enfermedades Respiratorias (CIBERES) Madrid Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tom\u00e1s","family":"Fern\u00e1ndez de Sevilla","sequence":"additional","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9","family":"Alegre","sequence":"additional","affiliation":[{"name":"CFS\/ME Unit Internal Medicine Service Vall d'Hebron University Hospital Research Institute (VHIR) Universitat Aut\u00f2noma de Barcelona Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,5,16]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"771","article-title":"The Spanish version of the SF\u201036 Health Survey (the SF\u201036 health questionnaire): an instrument for measuring clinical results","volume":"104","author":"Alonso J.","year":"1995","journal-title":"Medicina Clinica (Barcelona)"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/clinids\/18.Supplement_1.S68"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0165-1781(89)90047-4"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1300\/J092v11n01_02"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2796.2011.02428.x"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.psym.2017.04.010"},{"key":"e_1_2_8_8_1","volume-title":"Beyond myalgic encephalomyelitis\/chronic fatigue syndrome: redefining an illness","author":"Committee on the Diagnostic Criteria for Myalgic Encephalomyelitis\/Chronic Fatigue Syndrome; 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