Cited by 63Bipolar Disorder and TreatmentCircadian rhythm and melatoninSleep and related disorders

Evening chronotype as a discrete clinical subphenotype in bipolar disorder

Romo-Nava, Francisco, Blom, Thomas J., Cuellar-Barboza, Alfredo B., Winham, Stacey J., Colby, Colin L., Nunez, Nicolas A., Biernacka, Joanna M., Frye, Mark A. +1 more·2020·Journal of Affective Disorders

Abstract

Objective Our aim was to investigate evening chronotype, a proxy marker of circadian system dysfunction, as a clinical subphenotype in bipolar disorder (BD).Methods In this cross-sectional study, 773 BD participants and 146 control subjects were evaluated using the Structured Clinical Interview for DSM-IV and a set of questionnaires. Chronotype was determined using item-5 from the reduced Morningness-Eveningness Questionnaire. Univariate analyses and regression models were used to compare evening and non-evening chronotype in BD and chronotype association with clinical variables.Results Overall, 205 (27%) of BD patients reported an evening chronotype. Evening chronotype was higher in a matched sub-sample of BD patients (n = 150) than in controls (24% and 5% respectively, OR=5.4, p<0.01). Compared to those with non-evening chronotypes, BD patients with an evening chronotype were younger, had an earlier age of onset of BD, and had more prior depressive and manic episodes, higher rates of rapid cycling, past suicide attempts, more comorbid anxiety and substance use disorders. Multivariate regression showed age, prior suicide attempts, and co-occurring substance use disorder were associated with evening chronotype (OR range of 0.97 to1.59). Hypertension, migraine, asthma, and obstructive sleep apnea were significantly associated with evening chronotype (OR range of 1.56 to 2.0).Limitation Limitations include a cross-sectional study design that precludes establishing causality. Analyses did not control for medication use. Younger participant age may prevent evaluation of associations with late-life illnesses.Conclusions Evening chronotype may be a discrete clinical subphenotype in BD and circadian dysfunction a shared pathophysiological mechanism between psychopathology and medical morbidity.

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Crossref · 10.1016/j.jad.2020.01.151

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Authors
Romo-Nava, F., Blom, T. J., Cuellar-Barboza, A. B., Winham, S. J., Colby, C. L., Nunez, N. A., Biernacka, J. M., Frye, M. A., & McElroy, S. L.
Affiliations
  • Lindner Center of HOPE (US)
  • Mayo Clinic (US)
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2020-04
Volume
266
Pages
556-562
ISSN
0165-0327 (ISSN-L)
OpenAlex
W3001524963
Cited by
63
References
79
Citations by year
2026: 10 · 2025: 10 · 2024: 11 · 2023: 7 · 2022: 9 · 2021: 10 · 2020: 6
FWCI
5.84
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Affective Disorders (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Cephalon
  • Shire
  • Sunovion
  • MSN
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
Keywords
evening chronotype, bipolar disorder, rapid cycling, suicide attempts, substance use disorders, anxiety comorbidity, comorbidities, age of onset
MeSH terms
Bipolar Disorder, Circadian Rhythm, Cross-Sectional Studies, Humans, Surveys and Questionnaires, Sleep

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