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Prevalence and risk of migraine in patients with rosacea: A population-based cohort study.

J Am Acad Dermatol. 2016 Nov 3;:

Authors: Egeberg A, Ashina M, Gaist D, Gislason GH, Thyssen JP

Abstract
BACKGROUND: Rosacea features increased neurovascular reactivity; migraine is a complex neurologic disorder characterized by recurrent episodes of headache associated with nausea and increased sensitivity to light and sound.
OBJECTIVE: We evaluated the prevalence and risk of new-onset migraine in patients with rosacea.
METHODS: All Danish individuals 18 years of age or older were linked in nationwide registers. Adjusted hazard ratios (HRs) were estimated by Cox regression.
RESULTS: In the total cohort (n = 4,361,688), there were 49,475 patients with rosacea. Baseline prevalence of migraine was 7.3% and 12.1% in the reference population and in patients with rosacea, respectively. The fully adjusted HR of migraine was 1.31 (95% confidence interval 1.23-1.39) for patients with rosacea. Patients with phymatous rosacea (n = 594) had no increased risk of migraine (adjusted HR 0.45; 95% confidence interval 0.11-1.80), whereas patients with ocular rosacea (n = 6977) had a 69% increased risk (adjusted HR 1.69; 95% confidence interval 1.43-1.99). Notably, the risk was higher among patients age 50 years or older than in younger individuals, and the risk was only significant among women.
LIMITATIONS: We were unable to distinguish between migraine subtypes.
CONCLUSION: We found a significantly higher prevalence and risk of incident migraine especially in female patients with rosacea. These data add to the accumulating evidence for a link between rosacea and the central nervous system.

PMID: 27817869 [PubMed - as supplied by publisher]

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