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Daylight savings time transitions and the incidence rate of unipolar depressive episodes

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Daylight savings time transitions and the incidence rate of unipolar depressive episodes. / Hansen, Bertel T; Sønderskov, Kim M; Hageman, Ida; Dinesen, Peter Thisted; Østergaard, Søren D.

I: Epidemiology, Vol. 28, Nr. 3, 01.05.2017, s. 346-353.

Publikation: Forskning - peer reviewTidsskriftartikel

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Hansen BT, Sønderskov KM, Hageman I, Dinesen PT, Østergaard SD. Daylight savings time transitions and the incidence rate of unipolar depressive episodes. Epidemiology. 2017 maj 1;28(3):346-353. Tilgængelig fra, DOI: 10.1097/EDE.0000000000000580

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Hansen, Bertel T; Sønderskov, Kim M; Hageman, Ida; Dinesen, Peter Thisted; Østergaard, Søren D / Daylight savings time transitions and the incidence rate of unipolar depressive episodes.

I: Epidemiology, Vol. 28, Nr. 3, 01.05.2017, s. 346-353.

Publikation: Forskning - peer reviewTidsskriftartikel

Bibtex

@article{918705fbc25a455e9ad9ff76ec7c6d05,
title = "Daylight savings time transitions and the incidence rate of unipolar depressive episodes",
author = "Hansen, {Bertel T} and Sønderskov, {Kim M} and Ida Hageman and Dinesen, {Peter Thisted} and Østergaard, {Søren D}",
year = "2017",
month = "5",
doi = "10.1097/EDE.0000000000000580",
volume = "28",
pages = "346--353",
journal = "Epidemiology",
issn = "1044-3983",
publisher = "Lippincott Williams & Wilkins",
number = "3",

}

RIS

TY - JOUR

T1 - Daylight savings time transitions and the incidence rate of unipolar depressive episodes

AU - Hansen,Bertel T

AU - Sønderskov,Kim M

AU - Hageman,Ida

AU - Dinesen,Peter Thisted

AU - Østergaard,Søren D

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Background: Daylight savings time transitions affect approximately 1.6 billion people worldwide. Prior studies have documented associations between daylight savings time transitions and adverse health outcomes, but it remains unknown whether they also cause an increase in the incidence rate of depressive episodes. This seems likely because daylight savings time transitions affect circadian rhythms, which are implicated in the etiology of depressive disorder. Therefore, we investigated the effects of daylight savings time transitions on the incidence rate of unipolar depressive episodes.Methods: Using time series intervention analysis of nationwide data from the Danish Psychiatric Central Research Register from 1995 to 2012, we compared the observed trend in the incidence rate of hospital contacts for unipolar depressive episodes after the transitions to and from summer time to the predicted trend in the incidence rate.Results: The analyses were based on 185,419 hospital contacts for unipolar depression and showed that the transition from summer time to standard time were associated with an 11% increase (95% CI = 7%, 15%) in the incidence rate of unipolar depressive episodes that dissipated over approximately 10 weeks. The transition from standard time to summer time was not associated with a parallel change in the incidence rate of unipolar depressive episodes.Conclusion: This study shows that the transition from summer time to standard time was associated with an increase in the incidence rate of unipolar depressive episodes. Distress associated with the sudden advancement of sunset, marking the coming of a long period of short days, may explain this finding. See video abstract at, http://links.lww.com/EDE/B179.

AB - Background: Daylight savings time transitions affect approximately 1.6 billion people worldwide. Prior studies have documented associations between daylight savings time transitions and adverse health outcomes, but it remains unknown whether they also cause an increase in the incidence rate of depressive episodes. This seems likely because daylight savings time transitions affect circadian rhythms, which are implicated in the etiology of depressive disorder. Therefore, we investigated the effects of daylight savings time transitions on the incidence rate of unipolar depressive episodes.Methods: Using time series intervention analysis of nationwide data from the Danish Psychiatric Central Research Register from 1995 to 2012, we compared the observed trend in the incidence rate of hospital contacts for unipolar depressive episodes after the transitions to and from summer time to the predicted trend in the incidence rate.Results: The analyses were based on 185,419 hospital contacts for unipolar depression and showed that the transition from summer time to standard time were associated with an 11% increase (95% CI = 7%, 15%) in the incidence rate of unipolar depressive episodes that dissipated over approximately 10 weeks. The transition from standard time to summer time was not associated with a parallel change in the incidence rate of unipolar depressive episodes.Conclusion: This study shows that the transition from summer time to standard time was associated with an increase in the incidence rate of unipolar depressive episodes. Distress associated with the sudden advancement of sunset, marking the coming of a long period of short days, may explain this finding. See video abstract at, http://links.lww.com/EDE/B179.

U2 - 10.1097/EDE.0000000000000580

DO - 10.1097/EDE.0000000000000580

M3 - Journal article

VL - 28

SP - 346

EP - 353

JO - Epidemiology

T2 - Epidemiology

JF - Epidemiology

SN - 1044-3983

IS - 3

ER -