Prospective Study of Chronotype and Incident Depression Among Middle- and Older-Aged Women in the Nurses’ Health Study II

Details

• Personal Author:
  Chang S-C ; Devore EE ; Okereke OI ; Rohrer F ; Schernhammer ES ; Vetter C
• Description:
  Background: Prior cross-sectional studies have suggested that being a late chronotype is associated with depression and depressive symptoms, but prospective data are lacking. Methods: We examined the association between chronotype and incident depression (defined as self-reported physician/clinician-diagnosed depression or antidepressant medication use) in 32,470 female participants of the Nurses' Health Study II cohort who self-reported their chronotype (early, intermediate or late) and were free of depression at baseline in 2009 (average age: 55 yrs). Women updated their depression status on biennial questionnaires in 2011 and 2013. We used multivariable (MV)-adjusted Cox proportional hazards models to estimate hazard ratios (HR) and 95% confidence intervals (95%CI) for incident depression across chronotype categories (i.e., early, intermediate, and late chronotypes). Results: Across a follow-up period of 4 years, we observed 2,581 cases of incident depression in this cohort. Compared to intermediate chronotypes, early chronotypes had a modestly lower risk of depression after MV adjustment (MVHR = 0.88, 95%CI = 0.81-0.96), whereas late chronotypes had a similar risk of 1.06 (95%CI = 0.93-1.20); the overall trend across chronotype categories was statistically significant (ptrend<0.01). Results were similar when we restricted analyses to women who reported average sleep durations (7-8 h/day) and no history of rotating night shift work at baseline. Conclusions: Our results suggest that chronotype may influence the risk of depression in middle- to older-aged women. Additional studies are needed to confirm these findings and examine roles of both environmental and genetic factors to further our understanding of the role of chronotype in the etiology of mood disorders. [Description provided by NIOSH]
• Subjects:
  Behavior Circadian Rhythm Cohort Studies Health Personnel Mental Health Nervous System Occupational Health Safety Shift Work Schedule Sleep Women

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• Keywords:
  Author Keywords: Morningness-eveningness Behavior Patterns Circadian Rhythms Cohort Studies Mental Health Mood Nurses Shift Work Shift Workers
• ISSN:
  0022-3956
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; Massachusetts ; OSHA Region 1 ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  156-160
• Volume:
  103
• NIOSHTIC Number:
  nn:20051838
• Citation:
  J Psychiatr Res 2018 Aug; 103:156-160
• Contact Point Address:
  Céline Vetter, Department of Integrative Physiology, University of Colorado, 1725 Pleasant Street Ramaley N368, 354 UCB, Boulder, CO 80309-0354, USA
• Email:
  celine.vetter@colorado.edu
• Federal Fiscal Year:
  2018
• Performing Organization:
  Brigham and Women's Hospital, Inc., Boston, Massachusetts
• Peer Reviewed:
  True
• Start Date:
  20100801
• Source Full Name:
  Journal of Psychiatric Research
• End Date:
  20190831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:4745678134cb467c315207111a2e3277d16f4bf43928b722a5f11f85c48c74b14fb8258064172bc8392209dba98e7bd3f6be4707759bfd4dc3644348df669654
• Download URL:
  https://stacks.cdc.gov/view/cdc/211556/cdc_211556_DS1.pdf
• File Type:
  [PDF - 160.82 KB ]