The Effect of Poor Sleep Quality on Mood Outcome Differs Between Men and Women: A Longitudinal Study of Bipolar Disorder
Overview
Affiliations
Background: Sleep disturbance is bi-directionally related to mood de-stabilization in bipolar disorder (BD), and sleep quality differs in men and women. We aimed to determine whether perception of poor sleep quality would have a different effect on mood outcome in men versus women.
Methods: We assessed association between sleep quality (Pittsburgh Sleep Quality Index (PSQI)) at study intake and mood outcome over 2 years in subjects from the Prechter Longitudinal Study of Bipolar Disorder (N=216; 29.6% males). The main outcome measure was the severity, variability, and frequency of mood episodes measured by self-report over 2 years of follow-up. Multivariable linear regression models stratified by sex examined the relationship between PSQI with mood outcomes, while age, stressful life events, mood state and neuroticism at baseline were controlled.
Results: In women, poor sleep quality at baseline predicted increased severity (B=0.28, p<0.001) and frequency of episodes (B=0.32, p<0.001) of depression, and poor sleep quality was a stronger predictor than baseline depression; poor sleep quality predicted increased severity (B=0.19, p<0.05) and variability (B=0.20, p<0.05) of mania, and frequency of mixed episodes (B=0.27, p<0.01). In men, baseline depression and neuroticism were stronger predictors of mood outcome compared to poor sleep quality.
Limitations: We measured perception of sleep quality, but not objective changes in sleep.
Conclusions: In a longitudinal study of BD, women reported poorer perceived sleep quality than men, and poor sleep quality predicted worse mood outcome in BD. Clinicians should be sensitive to addressing sleep complaints in women with BD early in treatment to improve outcome in BD.
Influence of Socio-Demographic, Occupational and Lifestyle Variables on Sleep Time.
Dutheil F, Saint-Arroman C, Clinchamps M, Flaudias V, Fantini M, Pereira B Nat Sci Sleep. 2025; 17:195-210.
PMID: 39963101 PMC: 11832214. DOI: 10.2147/NSS.S495455.
Validation and cutoff score for the single-item sleep quality scale.
Badahdah A, Khamis F, Aloud N Sleep Breath. 2024; 29(1):24.
PMID: 39611989 DOI: 10.1007/s11325-024-03177-z.
The stress of losing sleep: Sex-specific neurobiological outcomes.
Wright C, Milosavljevic S, Pocivavsek A Neurobiol Stress. 2023; 24:100543.
PMID: 37252645 PMC: 10209346. DOI: 10.1016/j.ynstr.2023.100543.
Damme K, Alloy L, Kelley N, Carroll A, Young C, Chein J JCPP Adv. 2023; 2(1).
PMID: 36714682 PMC: 9879263. DOI: 10.1002/jcv2.12068.
Factors Associated With Sleep Disturbance Amongst Youth With Bipolar Disorder.
Barton J, Mio M, Timmins V, Mitchell R, Murray B, Goldstein B J Can Acad Child Adolesc Psychiatry. 2022; 31(4):165-175.
PMID: 36425019 PMC: 9661909.