Predictive factors of sleep quality in patients with chronic migraine

Neurologia. 2019 Mar 8;S0213-4853(19)30014-3. doi: 10.1016/j.nrl.2018.11.004. Online ahead of print.
[Article in English, Spanish]

Abstract

Introduction: One of the factors contributing to transformation of migraine are sleep disorders, which can act as a trigger and/or perpetuating factor in these patients. This study's primary objective was to identify predictive factors related to sleep quality in patients with chronic migraine (CM); the secondary objective was to identify any differences in psychological variables and disability between patients with CM with better or poorer sleep quality.

Methods: A total of 50 patients with CM were included in an observational, cross-sectional study. We recorded data on demographic, psychological, and disability variables using self-administered questionnaires.

Results: A direct, moderate-to-strong correlation was observed between the different disability and psychological variables analysed (P<.05). Regression analysis identified depressive symptoms, headache-related disability, and pain catastrophising as predictors of sleep quality; together, these factors explain 33% of the variance. Statistically significant differences were found between patients with better and poorer sleep quality for depressive symptoms (P=.016) and pain catastrophising (P=.036).

Conclusions: The predictive factors for sleep quality in patients with CM were depressive symptoms, headache-related disability, and pain catastrophising. Patients with poorer sleep quality had higher levels of pain catastrophising and depressive symptoms.

Keywords: Afectación psicológica; Calidad del sueño; Insomnia; Insomnio; Migraine; Migraña; Psychological comorbidity; Sleep disorders; Sleep quality; Trastornos del sueño.