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Monday, February 12th, 2018
Table of Contents

1 Introduction
5 PMID
 [F] Diseases Research  / PubMed Research Articles  /
Morningness-Eveningness questionnaire in bipolar disorder.

PubMed

 

Resource

Psychiatry research Feb ; 262()

Authors

Kanagarajan K1; Gou K2; Antinora C3; Buyukkurt A4; Crescenzi O5; Beaulieu S6; Storch KF7; Mantere O8;

Author Information
  • 1Department of Psychology, McGill University, Montreal, Canada.
  • 2Faculty of Medicine, McGill University, Montreal, Canada.
  • 3Department of Pharmacology, McGill University, Montreal, Canada.
  • 4Faculty of Medicine, McGill University, Montreal, Canada.
  • 5Department of Microbiology, McGill University, Montreal, Canada.
  • 6Douglas Mental Health University Institute, McGill University, Montreal, Canada; Department of Psychiatry, McGill University, Montreal, Canada.
  • 7Douglas Mental Health University Institute, McGill University, Montreal, Canada; Department of Psychiatry, McGill University, Montreal, Canada.
  • 8Douglas Mental Health University Institute, McGill University, Montreal, Canada; Department of Psychiatry, McGill University, Montreal, Canada. Electronic address: outi.mantere@douglas.mcgill.ca.

Abstract

The Morningness-Eveningness Questionnaire (MEQ) is among the most commonly used scales to measure chronotype. We aimed to evaluate psychometric properties and clinical correlates of MEQ in bipolar disorder. Patients with a clinical diagnosis of bipolar disorder (n = 53) answered questionnaires for chronotype (MEQ), mood (Quick Inventory of Depressive Symptoms-16, Altman Self-Rating Mania Scale), insomnia (Athens Insomnia Scale, AIS), and sleepiness (Epworth Sleepiness Scale). Mood was evaluated using Montgomery-Åsberg Depression Rating Scale and Young Mania Rating Scale. The MEQ showed high internal consistency with Cronbach's alpha of .85. Lower MEQ scores (eveningness) correlated with insomnia (AIS) (r = -.34, p = .013). The estimate for eveningness (13/53, 24.5%) in our study was higher than in comparable studies in the general population. Patients on lithium exhibited a higher mean MEQ score (56.0 on lithium vs 46.9 with no lithium, p = .007), whereas this score was lower for patients on an antidepressant (46.0 on antidepressants vs 52.6 with no antidepressants, p = .023). We conclude that the MEQ score is psychometrically reliable. However, future studies should further evaluate the association of medication with chronotype. Validation of categorical cut-offs for MEQ in a larger sample of bipolar patients is needed to increase clinical utility.

Copyright © 2018. Published by Elsevier B.V.

PMID

29427910

Others

Publication Type: Journal Article


This article is licensed under the the National Library of Medicine License. It uses material from the PubMed National Library of Medicine Data.


Last Modified:   2016-03-27


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