{"@context":{"@language":"en","Affiliation":"http:\/\/vivoweb.org\/ontology\/core#departmentOrSchool","AggregatedSourceRepository":"http:\/\/www.europeana.eu\/schemas\/edm\/dataProvider","Contributor":"http:\/\/purl.org\/dc\/terms\/contributor","Creator":"http:\/\/purl.org\/dc\/terms\/creator","DateAvailable":"http:\/\/purl.org\/dc\/terms\/issued","DateIssued":"http:\/\/purl.org\/dc\/terms\/issued","Description":"http:\/\/purl.org\/dc\/terms\/description","DigitalResourceOriginalRecord":"http:\/\/www.europeana.eu\/schemas\/edm\/aggregatedCHO","FullText":"http:\/\/www.w3.org\/2009\/08\/skos-reference\/skos.html#note","Genre":"http:\/\/www.europeana.eu\/schemas\/edm\/hasType","IsShownAt":"http:\/\/www.europeana.eu\/schemas\/edm\/isShownAt","Language":"http:\/\/purl.org\/dc\/terms\/language","PeerReviewStatus":"https:\/\/open.library.ubc.ca\/terms#peerReviewStatus","Provider":"http:\/\/www.europeana.eu\/schemas\/edm\/provider","Rights":"http:\/\/purl.org\/dc\/terms\/rights","RightsURI":"https:\/\/open.library.ubc.ca\/terms#rightsURI","ScholarlyLevel":"https:\/\/open.library.ubc.ca\/terms#scholarLevel","Series":"http:\/\/purl.org\/dc\/terms\/isPartOf","Title":"http:\/\/purl.org\/dc\/terms\/title","Type":"http:\/\/purl.org\/dc\/terms\/type","URI":"https:\/\/open.library.ubc.ca\/terms#identifierURI","SortDate":"http:\/\/purl.org\/dc\/terms\/date"},"Affiliation":[{"@value":"Arts, Faculty of","@language":"en"},{"@value":"Psychology, Department of","@language":"en"}],"AggregatedSourceRepository":[{"@value":"DSpace","@language":"en"}],"Contributor":[{"@value":"University of British Columbia. Department of Psychology","@language":"en"}],"Creator":[{"@value":"Shi, Lianjie","@language":"en"},{"@value":"Heine, Steven J.","@language":"en"}],"DateAvailable":[{"@value":"2023-06-06T17:49:09Z","@language":"en"}],"DateIssued":[{"@value":"2023-03-31","@language":"en"}],"Description":[{"@value":"Chronotype refers to the time that people typically sleep during a 24-hour period. People\r\nwith earlier chronotypes usually get up earlier and are more active in the morning than\r\nthose with later chronotypes. Chronotype has been found to vary across countries, and\r\nresearch finds that within countries a later chronotype is correlated with worse health\r\noutcomes. This study examines chronotype\u2019s effect on people\u2019s physical and mental\r\nhealth levels across different countries. We recruited 5128 participants from 20 countries\r\nover six continents, with approximately 250 participants in each country. Participants\r\ncompleted the survey in a two-week window before and after the autumn equinox,\r\nreporting their chronotypes, mental health levels, physical health levels, and depression\r\nlevels. We used multilevel modeling to study the effect of chronotype on people\u2019s health\r\noutcomes within and between countries. We found that within countries, people with\r\nchronotypes that are later than the corresponding country\u2019s average tend to have lower\r\nphysical and mental health outcomes. However, the analysis of between-country effects\r\ndid not show any relationship between chronotype and people\u2019s health outcomes. Our\r\nstudy\u2019s findings highlight the importance of cultural fit in the relationship between chronotype and health level, demonstrating that people\u2019s chronotypes are most relevant\r\nfor predicting people\u2019s health in comparison with their own countries\u2019 averages.","@language":"en"}],"DigitalResourceOriginalRecord":[{"@value":"https:\/\/circle.library.ubc.ca\/rest\/handle\/2429\/84801?expand=metadata","@language":"en"}],"FullText":[{"@value":"RESULTS (MLM)THE UNIVERSITY OF BRITISH COLUMBIAChronotype\u2019s Effects on Health Across Countries   Lianjie (Marc) Shi, Steven HeineINTRODUCTIONMETHODSWhat is chronotype ?\u2022 Behavior manifestation of the underlying circadian rhythm which varies across individuals \u2022 Two general types: Night Owl and Morning Lark. \u2022 Suggested is more of a continuum than two extreme. Participants \u2022 4941(5128) participants from 20 countries across 6 continents\u2022 With 250 participants per each country\u2022 All participants are of domestic cultural heritage Measurements  \u2022 Chronotype \u00e0 Munich Chronotype Questionnaire (MCTQ)\u2022 Mental health level \u00e0 PROMIS Global Mental \u2022 Physical health level \u00e0 PROMIS Global Physical \u2022 Depression level \u00e0 PROMIS Depression Statistical Analysis\u2022Multilevel modeling (MLM)\u2022 individuals(level1) nested within countries(level2) Previous studies\u2022 There are Difference in chronotype across countries\u2022 People with Evening chronotype are associated with higher chance of physical and mental illness \u2022 Countries with more morning chronotype are NOT associated with higher health outcomes relative to countries with more evening chronotype. (WHO) Research question \u2022 What is the relationship between chronotype and health outcomesacross countries?Hypothesis \u2022 Chronotype\u2019s effects on health outcomes is \u2022 Only significant for within-country level \u2022 Different across countries Predictors Estimate (CI) P-value Within Countries -0.75 [-1.08, -0.42] < .001Between Countries -2.19 [-5.00, 0.62] 0.440Variance between country 0.22 0.079Physical Health as outcome variableMental Healthas outcome variableDepressionas outcome variableCONCLUSION AND SIGNIFICANCEWithin Countries : \u2022 People with chronotypes that are later than the corresponding country\u2019s average tend to have lower physical and mental health outcomes. \u2022 The effects of chronotype on countries are different from each other Between Countries: However, the analysis of between-country effects did not show any relationship between chronotype and people\u2019s health outcomes. Significance \u2022 Our study\u2019s findings highlight the importance of cultural fit in the relationship between chronotype and health level, demonstrating that people\u2019s chronotypes are most relevant for predicting people\u2019s health in comparison with their own countries\u2019 averagesReferences:Adan, A., Archer, S. N., Hidalgo, M. P., Di Milia, L., Natale, V., & Randler, C. (2012). Circadian Typology: A Comprehensive Review. Bailey, S. L., & Heitkemper, M. M. (2001). Circadian rhythmicity of cortisol and body temperature: Morningness-eveningness effects. Cheung, B. Y., Takemura, K., Ou, C., Gale, A., & Heine, S. J. (2021). Considering cross-cultural differences in sleep duration between Japanese and Canadian university students. Relationships between Chronotype and Health OutcomesPredictors Estimate (CI) P-value Within Countries -0.56 [-0.79, -0.33] < .001Between Countries -3.49 [-5.60, -1.37] 0.440Variance between country 0.10 0.707Predictors Estimate (CI) P-value Within Countries 0.07 [0.04, 0.11] < .001Between Countries 0.02 [-0.29, 0.25] 0.883Variance between country 0.10 0.102Between-Country Slope","@language":"en"}],"Genre":[{"@value":"Poster","@language":"en"}],"IsShownAt":[{"@value":"10.14288\/1.0433028","@language":"en"}],"Language":[{"@value":"eng","@language":"en"}],"PeerReviewStatus":[{"@value":"Unreviewed","@language":"en"}],"Provider":[{"@value":"Vancouver : University of British Columbia Library","@language":"en"}],"Rights":[{"@value":"Attribution-NonCommercial-NoDerivatives 4.0 International","@language":"*"}],"RightsURI":[{"@value":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/","@language":"*"}],"ScholarlyLevel":[{"@value":"Faculty","@language":"en"},{"@value":"Undergraduate","@language":"en"}],"Series":[{"@value":"University of British Columbia. Psychology Undergraduate Research Conference (PURC)","@language":"en"}],"Title":[{"@value":"Chronotype\u2019s Effects on Health Across Countries","@language":"en"}],"Type":[{"@value":"Text","@language":"en"}],"URI":[{"@value":"http:\/\/hdl.handle.net\/2429\/84801","@language":"en"}],"SortDate":[{"@value":"2023-03-31 AD","@language":"en"}],"@id":"doi:10.14288\/1.0433028"}