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Yet brief screening measures to identify those most in need of an intervention are lacking. This study investigated the potential of the two-item Sleep Condition Indicator (SCI-02) for screening insomnia symptoms in children and adolescents. We sought to establish whether there are distinct subgroups with different sleep profiles and whether subgroup membership varied with gender and school year group.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Students (school years 5\u201313; typical age 9\u201318 years) in England completed the OxWell Student Survey in 2021. Sleep measures included: SCI-02, sleep onset latency (SOL), sleep duration, daytime sleepiness, and worry disrupting sleep. Latent profile analysis and multinomial logistic regression explored sleep profiles and predicted class membership.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>In total, 29,304 participants answered sleep items. Of these, 95% provided binary gender (<jats:italic>n<\/jats:italic>\u2009=\u200927,802, 55% female) for analyses. Five sleep profiles emerged. The profiles, labelled \u201cgood\u201d, \u201cmoderate\u201d, or \u201cpoor\u201d sleepers, vary by sleep quality \u2013 which includes time taken to fall asleep (SOL), amount of sleep (sleep duration), and the disruption of sleep due to worry. The profiles are then further differentiated by high levels of daytime sleepiness \u2013 labelled \u201csleepy\u201d. \u201cGood Sleepers\u201d (18,355, 66%), \u201cModerate Sleepers\u201d (4825, 17.4%), \u201cModerate Sleepy Sleepers\u201d (1250, 4.5%), \u201cPoor Sleepers\u201d (1037, 3.7%) and \u201cPoor Sleepy Sleepers\u201d (2335, 8.4%). Probable insomnia rates (SCI-02\u2009\u2264\u20092) were high in both poor sleeper profiles (70\u201380%) compared with other profiles (0%) and the sample overall (9%). Compared with \u201cGood Sleepers\u201d, all other profiles were mostly female. Daytime sleepiness \u2013 the defining characteristic of the sleepy sleeper profiles \u2013 was more common in secondary school participants than primary school.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The SCI-02 is an efficient, two-question measure to screen for potential sleep problems in young people. Sleep disruption was high: one in ten were experiencing poor sleep. Females and adolescents appeared more vulnerable to poor sleep and daytime sleepiness. The SCI-02 has the potential for use in school and community contexts to identify children and adolescents who may benefit from support managing their sleep.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12889-024-20310-5","type":"journal-article","created":{"date-parts":[[2024,10,24]],"date-time":"2024-10-24T20:33:23Z","timestamp":1729802003000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Insomnia symptoms in children and adolescents: screening for sleep problems with the two-item Sleep Condition Indicator (SCI-02)"],"prefix":"10.1186","volume":"24","author":[{"given":"Gaby","family":"Illingworth","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karen L.","family":"Mansfield","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simona","family":"Skripkauskaite","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mina","family":"Fazel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felicity","family":"Waite","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,10,24]]},"reference":[{"issue":"6","key":"20310_CR1","doi-asserted-by":"publisher","first-page":"S266","DOI":"10.1139\/apnm-2015-0627","volume":"41","author":"J-P Chaput","year":"2016","unstructured":"Chaput J-P, Gray CE, Poitras VJ, Carson V, Gruber R, Olds T, et al. 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Sleep Med. 2011;12:110\u20138.","journal-title":"Sleep Med"}],"container-title":["BMC Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12889-024-20310-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12889-024-20310-5\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12889-024-20310-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,24]],"date-time":"2024-10-24T21:02:53Z","timestamp":1729803773000},"score":1,"resource":{"primary":{"URL":"https:\/\/bmcpublichealth.biomedcentral.com\/articles\/10.1186\/s12889-024-20310-5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,10,24]]},"references-count":55,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2024,12]]}},"alternative-id":["20310"],"URL":"https:\/\/doi.org\/10.1186\/s12889-024-20310-5","relation":{},"ISSN":["1471-2458"],"issn-type":[{"value":"1471-2458","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,10,24]]},"assertion":[{"value":"10 January 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"7 October 2024","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"24 October 2024","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The University of Oxford Research Ethics Committee approved the study including the procedure of taking informed consent or assent (Ref: R62366). The study team liaised with ethics in order to ensure that procedures were followed that permitted use of a parental opt-out approach. Survey data from minors, which refers to individuals younger than the age of 16, may be collected with assent from minors but without explicit consent from parents\/legal guardians in certain circumstances, and there are several surveys in the UK using this approach. The key reason to use the opt-out method is to attain a diverse and more generalisable sample, including students at greater risk of poor mental health, and in order to assess prevalence of mental health difficulties at the school level. The study adhered to the University of Oxford\u2019s \u2018approved procedures\u2019 (e.g., recruiting through schools, not collecting explicit identifiers such as name, date of birth, address, and not using individual logins), and approval was given following review by the University ethical review board.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"2957"}}