Winter is coming : nightmares and sleep problems during seasonal affective disorder

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dc.contributor.author Sandman, Nils
dc.contributor.author Merikanto, Ilona
dc.contributor.author Maattanen, Hanna
dc.contributor.author Valli, Katja
dc.contributor.author Kronholm, Erkki
dc.contributor.author Laatikainen, Tiina
dc.contributor.author Partonen, Timo
dc.contributor.author Paunio, Tiina
dc.date.accessioned 2016-12-16T13:04:01Z
dc.date.available 2016-12-16T13:04:01Z
dc.date.issued 2016-10
dc.identifier.citation Sandman , N , Merikanto , I , Maattanen , H , Valli , K , Kronholm , E , Laatikainen , T , Partonen , T & Paunio , T 2016 , ' Winter is coming : nightmares and sleep problems during seasonal affective disorder ' , Journal of Sleep Research , vol. 25 , no. 5 , pp. 612-619 . https://doi.org/10.1111/jsr.12416
dc.identifier.other PURE: 76935449
dc.identifier.other PURE UUID: 354ad85e-207e-4941-97ed-1131f8ce2943
dc.identifier.other WOS: 000388457300017
dc.identifier.other Scopus: 84970003100
dc.identifier.other ORCID: /0000-0002-1222-6678/work/36832444
dc.identifier.uri http://hdl.handle.net/10138/172273
dc.description.abstract Sleep problems, especially nightmares and insomnia, often accompany depression. This study investigated how nightmares, symptoms of insomnia, chronotype and sleep duration associate with seasonal affective disorder, a special form of depression. Additionally, it was noted how latitude, a proxy for photoperiod, and characteristics of the place of residence affect the prevalence of seasonal affective disorder and sleep problems. To study these questions, data from FINRISK 2012 study were used. FINRISK 2012 consists of a random population sample of Finnish adults aged 25-74 years (n = 4905) collected during winter from Finnish urban and rural areas spanning the latitudes of 60 degrees N to 66 degrees N. The Seasonal Pattern Assessment Questionnaire was used to assess symptoms of seasonal affective disorder. Participants with symptoms of seasonal affective disorder had significantly increased odds of experiencing frequent nightmares and symptoms of insomnia, and they were more often evening chronotypes. Associations between latitude, population size and urbanicity with seasonal affective disorder symptoms and sleep disturbances were generally not significant, although participants living in areas bordering urban centres had less sleep problems than participants from other regions. These data show that the prevalence of seasonal affective disorder was not affected by latitude. en
dc.format.extent 8
dc.language.iso eng
dc.relation.ispartof Journal of Sleep Research
dc.rights cc_by_nc
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject epidemiology
dc.subject urban-rural differences
dc.subject PATTERN ASSESSMENT QUESTIONNAIRE
dc.subject RISK-FACTORS
dc.subject MOOD
dc.subject POPULATION
dc.subject BEHAVIOR
dc.subject PREVALENCE
dc.subject LIGHT
dc.subject EPIDEMIOLOGY
dc.subject EVENINGNESS
dc.subject CHRONOTYPE
dc.subject 3112 Neurosciences
dc.subject 3124 Neurology and psychiatry
dc.title Winter is coming : nightmares and sleep problems during seasonal affective disorder en
dc.type Article
dc.contributor.organization Biosciences
dc.contributor.organization Clinicum
dc.contributor.organization Department of Psychiatry
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1111/jsr.12416
dc.relation.issn 0962-1105
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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