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The impact of daylight‐saving time (DST) on patients with delayed sleep‐wake phase disorder (DSWPD)

dc.contributor.authorReis, Cátia
dc.contributor.authorPilz, Luísa K.
dc.contributor.authorKramer, Achim
dc.contributor.authorLopes, Luísa V.
dc.contributor.authorPaiva, Teresa
dc.contributor.authorRoenneberg, Till
dc.date.accessioned2023-03-29T08:08:19Z
dc.date.issued2023-03-21
dc.description.abstractDue to time zones, sun time and local time rarely match. The difference between local and sun time, which we designate by Solar Jet Lag (SoJL), depends on location within a time zone and can range from zero to several hours. Daylight Saving Time (DST) simply adds one hour to SoJL, independent of location. We hypothesized that the impact of DST, is particularly problematic in patients with Delayed Sleep-Wake Phase Disorder (DSWPD), worsening their sleep debt. DSWPD is characterized by a chronic misalignment between the internal and social timing, reflected by an inability to fall asleep and wakeup at conventional or socially acceptable times. We analysed the clinical records of 162 DSWPD patients from a sleep medicine centre in Lisbon, Portugal (GMTzone), and separated them into two groups: the ones diagnosed across DST or Standard Time (ST). We included 82 patients (54.9% male; age: median [Q1, Q3] 34.5 [25.0, 45.3]; range 16-92; 54 in DST and 28 in ST) who had Dim Light Melatonin Onset (DLMO) measured as a marker for the circadian phase and sleep timing (onset, SO, mid-point, MS and end, SE) self-reported separately for work- and work-free days. Differences between ST and DST were compared using Mann-Whitney or Student's t tests. On a weekly average, patients in DST slept an hour less (62 min. ppt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1111/jpi.12867pt_PT
dc.identifier.eid85152027038
dc.identifier.issn0742-3098
dc.identifier.pmid36942915
dc.identifier.urihttp://hdl.handle.net/10400.14/40740
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDLMOpt_PT
dc.subjectLocal timept_PT
dc.subjectSolar timept_PT
dc.subjectChronotypept_PT
dc.subjectDSWPDpt_PT
dc.subjectPhase anglept_PT
dc.titleThe impact of daylight‐saving time (DST) on patients with delayed sleep‐wake phase disorder (DSWPD)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Pineal Researchpt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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