{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T10:32:23Z","timestamp":1792405943707,"version":"4.4.0"},"reference-count":15,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2020,2,28]],"date-time":"2020-02-28T00:00:00Z","timestamp":1582848000000},"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":[[2020,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The Epworth Sleepiness Scale is used frequently to measure excessive daytime sleepiness in research and clinical settings, although there is limited evidence on test\u2013retest reliability, particularly among sleep clinic populations. The objective of this study was to evaluate the reliability of this instrument among adult patients recruited from a public hospital sleep clinic in Sydney, Australia. English\u2010speaking participants self\u2010completed the Epworth Sleepiness Scale on two occasions, at the specialist clinic visit and on the night of diagnostic polysomnography. Of the 108 participants included in the study, the majority were male (64%) and the mean age was 51\u00a0years. The median retest interval was 64\u00a0days. The primary outcome of test\u2013retest reliability as measured using the intraclass correlation coefficient was 0.73 (95% confidence interval, 0.61\u20130.82). Despite moderate statistical reliability and a low mean difference of 1.1, Bland\u2010Altman analysis showed an unacceptably wide distribution of between\u2010score differences. The 95% limits of agreement were \u22128.5 to +10.6, and an absolute difference in scores of at least 3 was observed in 60 (56%) of the participants. Our results suggest that the Epworth Sleepiness Scale should not be used in clinical settings to make individual\u2010level comparisons, such as the effect of therapeutic interventions, or to prioritise access to services.<\/jats:p>","DOI":"10.1111\/jsr.13019","type":"journal-article","created":{"date-parts":[[2020,2,28]],"date-time":"2020-02-28T14:16:11Z","timestamp":1582899371000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["The Epworth sleepiness scale: Reliably unreliable in a sleep clinic population"],"prefix":"10.1111","volume":"29","author":[{"given":"Jessica Louise","family":"Lee","sequence":"first","affiliation":[{"name":"School of Medicine The University of Notre Dame Australia Sydney NSW Australia"},{"name":"Department of Respiratory and Sleep Medicine Liverpool Hospital Sydney NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0692-6608","authenticated-orcid":false,"given":"Yewon","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Respiratory and Sleep Medicine Liverpool Hospital Sydney NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward","family":"Waters","sequence":"additional","affiliation":[{"name":"School of Medicine The University of Notre Dame Australia Sydney NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hima","family":"Vedam","sequence":"additional","affiliation":[{"name":"Department of Respiratory and Sleep Medicine Liverpool Hospital Sydney NSW Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,2,28]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sleh.2016.11.005"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.5664\/jcsm.7108"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/14.6.540"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/20.10.844"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.smrv.2013.08.002"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcm.2016.02.012"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sleep.2017.11.544"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1177\/1094428114548590"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.5664\/jcsm.26512"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.5664\/jcsm.5676"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11325\u2010012\u20100700\u20108"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.2147\/NSS.S134112"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1080\/07420528.2017.1420075"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1093\/med\/9780199685219.001.0001"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/jsr.12687"}],"container-title":["Journal of Sleep Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjsr.13019","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jsr.13019","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/jsr.13019","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jsr.13019","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,18]],"date-time":"2023-08-18T21:22:34Z","timestamp":1692393754000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jsr.13019"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,2,28]]},"references-count":15,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2020,10]]}},"alternative-id":["10.1111\/jsr.13019"],"URL":"https:\/\/doi.org\/10.1111\/jsr.13019","archive":["Portico"],"relation":{},"ISSN":["0962-1105","1365-2869"],"issn-type":[{"value":"0962-1105","type":"print"},{"value":"1365-2869","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,2,28]]},"assertion":[{"value":"2019-10-01","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-02-10","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-02-28","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e13019"}}