{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T13:29:38Z","timestamp":1788269378577,"version":"build-2803163510"},"reference-count":53,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2020,7,29]],"date-time":"2020-07-29T00:00:00Z","timestamp":1595980800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005036","name":"Universitetet i Bergen","doi-asserted-by":"publisher","award":["PhD grant Hanna F. Skj\u00e5k\u00f8deg\u00e5rd"],"award-info":[{"award-number":["PhD grant Hanna F. Skj\u00e5k\u00f8deg\u00e5rd"]}],"id":[{"id":"10.13039\/501100005036","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004257","name":"Helse Vest","doi-asserted-by":"publisher","award":["Project grant 911964"],"award-info":[{"award-number":["Project grant 911964"]}],"id":[{"id":"10.13039\/501100004257","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pediatric Obesity"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:title>Summary<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Ample evidence attests to the relationship between short sleep duration, sleep problems and childhood obesity. However, few studies have examined the association between sleep timing and obesity in children.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To investigate how sleep duration, problems and timing relate to obesity and obesogenic behaviours in children.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Eighty\u2010five children (58.8% girls) with severe obesity and mean (SD) age of 12.1 (2.9) years, were matched by age and sex with peers with normal weight (n = 85,12.0 [2.8] years). Sleep and moderate\u2010to\u2010vigorous physical activity (MVPA) were measured via accelerometer for seven consecutive days. Children self\u2010reported emotional eating on the Dutch eating behavior questionnaire. Parents reported children's screen time and sleep problems.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Children with severe obesity had significantly later mean mid\u2010sleep time, overall (36\u2009minutes later, <jats:italic>P<\/jats:italic> &lt;\u2009.001), on school nights (36\u2009minutes later, <jats:italic>P<\/jats:italic>\u2009&lt;\u2009.001) and weekend nights (39\u2009minutes later, <jats:italic>P<\/jats:italic> =\u2009.002) compared to children with normal weight. Children with obesity had more sleep problems (<jats:italic>P<\/jats:italic> =\u2009.030), but no differences emerged in sleep duration or social jetlag. After adjusting for demographic factors, mid\u2010sleep time was positively related to screen time (<jats:italic>P<\/jats:italic> =\u2009.030). Mid\u2010sleep time and sleep duration were inversely related to time in MVPA (<jats:italic>P<\/jats:italic>s\u2009\u2264\u2009.041). There were no other significant associations between the sleep variables and the obesogenic behaviours.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Later sleep timing was related to obesogenic behaviours in children and may represent an obesity risk factor.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ijpo.12698","type":"journal-article","created":{"date-parts":[[2020,7,30]],"date-time":"2020-07-30T05:55:52Z","timestamp":1596088552000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":58,"title":["Beyond sleep duration: Sleep timing as a risk factor for childhood obesity"],"prefix":"10.1111","volume":"16","author":[{"given":"Hanna F.","family":"Skj\u00e5k\u00f8deg\u00e5rd","sequence":"first","affiliation":[{"name":"Department of Clinical Science University of Bergen  Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yngvild S.","family":"Danielsen","sequence":"additional","affiliation":[{"name":"Department of Clinical Psychology University of Bergen  Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bente","family":"Frisk","sequence":"additional","affiliation":[{"name":"Department of Health and Functioning Western Norway University of Applied Sciences  Bergen Norway"},{"name":"Department of Physiotherapy Haukeland University Hospital  Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sigurd W.","family":"Hystad","sequence":"additional","affiliation":[{"name":"Department of Psychosocial Science University of Bergen  Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mathieu","family":"Roelants","sequence":"additional","affiliation":[{"name":"Department of Public Health and Primary Care, KU Leuven University of Leuven  Leuven Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"St\u00e5le","family":"Pallesen","sequence":"additional","affiliation":[{"name":"Department of Psychosocial Science University of Bergen  Norway"},{"name":"Norwegian Competence Center for Sleep Disorders Haukeland University Hospital  Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5107-1146","authenticated-orcid":false,"given":"Rachel P. 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