Predictive factors of sleep quality in patients with chronic migraine

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. (C) 2019 Sociedad Espanola de Neurologia. Published by Elsevier Espana, S.L.U.

Automated summary

Sleep disorders are contributing factors to the transformation of migraine. This study identified depressive symptoms, headache-related disability, and pain catastrophising as predictive factors for sleep quality in patients with chronic migraine.