Sleep disorders

The Chronic Migraine Epidemiology and Outcomes (CaMEO) study was a web-based survey in the USA, analysing migraine symptoms, disease burden, and the impact of migraine on healthcare resource use.^{[Buse et al., 2019]} Data from the CaMEO study were used to assess the prevalence of sleep disorders among people with migraine, using self-report metrics such as the Medical Outcomes Study (MOS) scale.^{[Buse et al., 2019]}

The MOS scale consists of 12 items to measure 6 sleep dimensions: initiation (time to fall asleep), quantity (hours of sleep each night), maintenance, respiratory problems, perceived adequacy, and somnolence (the last 4 items are reported using a 6-item Likert scale ranging from ‘all of the time’ to ‘none of the time’).^{[Buse et al., 2019; Hays et al., 2005]}

References:
Buse DC, Rains JC, Pavlovic JM, et al. Sleep disorders among people with migraine: results from the Chronic Migraine Epidemiology and Outcomes (CaMEO) study. Headache 2019; 59 (1): 32–45.

Hays RD, Martin SA, Sesti AM, Spritzer KL. Psychometric properties of the Medical Outcomes Study sleep measure. Sleep Med 2005; 6 (1): 41–44.

Other references used on slide:
Buse DC, Reed ML, Fanning KM, et al. Comorbid and co-occurring conditions in migraine and associated risk of increasing headache pain intensity and headache frequency: results of the Migraine in America Symptoms and Treatment (MAST) study. J Headache Pain 2020; 21 (1): 23.

Chu MK. Sleep apnoea and poor sleep quality in patients with chronic migraine. Nat Rev Neurol 2019; 15 (3): 130–131.

Kim J, Cho SJ, Kim WJ, et al. Insufficient sleep is prevalent among migraineurs: a population-based study. J Headache Pain 2017; 18 (1): 50.