{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T11:25:32Z","timestamp":1788175532811,"version":"build-2803163510"},"reference-count":21,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,11,29]],"date-time":"2024-11-29T00:00:00Z","timestamp":1732838400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Sleep Research"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Summary<\/jats:title>\n                  <jats:p>\n                    Polysomnography, the gold\u2010standard for measuring sleep, is costly, intrusive and usually limited to 1\u2005night. Actigraphy offers a more affordable, less intrusive method over multiple nights. However, little research validates ActiGraph accelerometers against polysomnography, especially in children. This study evaluated the validity of different algorithms and compared wrist versus ankle accelerometer placements for estimating sleep in children aged 1\u201312\u2009years. Twenty\u2010nine children undergoing overnight type 1 polysomnography wore ActiGraph accelerometers. Six algorithms were evaluated against polysomnography using Pearson correlations, intraclass correlation, paired\n                    <jats:italic>t<\/jats:italic>\n                    \u2010tests and Bland\u2013Altman plots. Agreement was classified as poor (intraclass correlation coefficient\u2009&lt;\u20090.4), fair (0.4\u2009&lt;\u2009intraclass correlation coefficient\u2009&lt;\u20090.6), good (0.6\u2009&lt;\u2009intraclass correlation coefficient\u2009&lt;\u20090.75) or excellent (intraclass correlation coefficient\u2009&gt;\u20090.75). Total sleep time was the primary outcome. For wrist\u2010worn devices, the Sadeh (Actilife) and Cole\u2013Kripke (Actilife and GGIR) algorithms showed excellent agreement with polysomnography (intraclass correlation coefficient\u2009=\u20090.80\u20130.85), while vanHees showed good agreement (intraclass correlation coefficient\u2009=\u20090.67) and Galland showed fair agreement (intraclass correlation coefficient\u2009=\u20090.46). The Cole\u2013Kripke algorithm did not significantly differ from polysomnography total sleep time, whereas others underestimated total sleep time. For ankle\u2010worn devices, Sadeh (Actilife), Cole\u2013Kripke (Actilife) and vanHees algorithms demonstrated excellent agreement (intraclass correlation coefficient\u2009=\u20090.75\u20130.82). No significant differences were found between wrist and ankle placements for certain algorithms. The findings support accelerometry as a valid tool for sleep assessment in children, recommending that algorithm selection be tailored to specific study requirements.\n                  <\/jats:p>","DOI":"10.1111\/jsr.14426","type":"journal-article","created":{"date-parts":[[2024,11,30]],"date-time":"2024-11-30T01:19:52Z","timestamp":1732929592000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Accelerometry for sleep assessment in children: Criterium validity of different algorithms in wrist\u2010 and ankle\u2010worn devices"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7780-1437","authenticated-orcid":false,"given":"Pia","family":"Burger","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Emma Children's Hospital Amsterdam UMC  Amsterdam Netherlands"},{"name":"Amsterdam Reproduction and Development Research Institute  Amsterdam Netherlands"},{"name":"Amsterdam Public Health Research Institute Amsterdam University Medical Center  Amsterdam the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frea H.","family":"Kruisinga","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Emma Children's Hospital Amsterdam UMC  Amsterdam Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anneline","family":"Lettink","sequence":"additional","affiliation":[{"name":"Amsterdam Public Health Research Institute Amsterdam University Medical Center  Amsterdam the Netherlands"},{"name":"Amsterdam UMC Location Vrije Universiteit Amsterdam Public and Occupational Health  Amsterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mai J. M.","family":"Chinapaw","sequence":"additional","affiliation":[{"name":"Amsterdam Public Health Research Institute Amsterdam University Medical Center  Amsterdam the Netherlands"},{"name":"Amsterdam UMC Location Vrije Universiteit Amsterdam Public and Occupational Health  Amsterdam The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5603-2640","authenticated-orcid":false,"given":"Reinoud J. B. J.","family":"Gemke","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Emma Children's Hospital Amsterdam UMC  Amsterdam Netherlands"},{"name":"Amsterdam Reproduction and Development Research Institute  Amsterdam Netherlands"},{"name":"Amsterdam Public Health Research Institute Amsterdam University Medical Center  Amsterdam the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,11,29]]},"reference":[{"key":"e_1_2_10_2_1","unstructured":"Actigraph. (2018).Where can I find documentation for the Sadeh and Cole Kripke algorithms?https:\/\/actigraphcorp.force.com\/support\/s\/article\/Where\u2010can\u2010I\u2010find\u2010documentation\u2010for\u2010the\u2010Sadeh\u2010and\u2010Cole\u2010Kripke\u2010algorithms."},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.5664\/jcsm.2844"},{"issue":"176","key":"e_1_2_10_4_1","first-page":"7","article-title":"The AASM manual for the scoring of sleep and associated events. Rules, terminology and technical specifications","volume":"2012","author":"Berry R. B.","year":"2012","journal-title":"Sleep Medicine"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.d2712"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/15.5.461"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jir.12236"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/annweh\/wxaa007"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sleep.2012.01.018"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.20982\/tqmp.08.1.p023"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/sim.3086"},{"issue":"1","key":"e_1_2_10_12_1","first-page":"159","article-title":"Direct comparison of two new actigraphs and polysomnography in children and adolescents","volume":"35","author":"Meltzer L. J.","year":"2012","journal-title":"Sleep"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12966-024-01590-x"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1123\/jmpb.2018-0063"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.2147\/NSS.S151085"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sleep.2014.04.021"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/19.10.757"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/17.3.201"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleepadvances\/zpad028"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1093\/sleep\/31.3.395"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyt.2019.00958"},{"issue":"11","key":"e_1_2_10_22_1","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0142533","article-title":"A novel, open access method to assess sleep duration using a wrist\u2010worn accelerometer","volume":"10","author":"Hees V. T.","year":"2015","journal-title":"PLoS One"}],"container-title":["Journal of Sleep Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jsr.14426","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T02:52:44Z","timestamp":1764903164000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jsr.14426"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11,29]]},"references-count":21,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2025,8]]}},"alternative-id":["10.1111\/jsr.14426"],"URL":"https:\/\/doi.org\/10.1111\/jsr.14426","archive":["Portico"],"relation":{},"ISSN":["0962-1105","1365-2869"],"issn-type":[{"value":"0962-1105","type":"print"},{"value":"1365-2869","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,11,29]]},"assertion":[{"value":"2024-09-18","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-11-16","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-11-29","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e14426"}}