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Increased risk of all-cause, Alzheimer's, and vascular dementia in adults with migraine in Korea: a population-based cohort study

 Kyungduk Hurh  ;  Sung Hoon Jeong  ;  Seung Hoon Kim  ;  Suk-Yong Jang  ;  Eun-Cheol Park  ;  Sung-In Jang 
 JOURNAL OF HEADACHE AND PAIN, Vol.23(1) : 108, 2022-08 
Journal Title
Issue Date
Adult ; Alzheimer Disease* / complications ; Alzheimer Disease* / diagnosis ; Alzheimer Disease* / epidemiology ; Cohort Studies ; Dementia, Vascular* / complications ; Dementia, Vascular* / etiology ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Migraine Disorders* / complications ; Migraine Disorders* / epidemiology ; Republic of Korea / epidemiology ; Retrospective Studies ; Risk Factors
Alzheimer’s dementia ; Chronic headaches ; Dementia ; Migraine ; Risk-set matching ; Vascular dementia
Background: Studies investigating the association between migraine and dementia have reported inconsistent findings. This study aimed to evaluate whether patients with migraine have an increased risk of dementia compared to individuals without migraine.

Methods: We obtained data from the 2002-2019 Korean National Health Insurance Health Screening Cohort. Non-migraine controls were selected using a 1:1 risk-set matching with a time-dependent propensity score. The main outcome was the development of all-cause dementia, and the secondary outcome was the development of each cause of dementia (Alzheimer's, vascular, mixed or other specified, and unspecified dementia). The incidence rate of dementia was calculated using Poisson regression, and the association between migraine and dementia was evaluated using Cox proportional hazards regression.

Results: Among 88,390 participants, 66.1% were female, and the mean baseline age was 55.3 ± 9.4 years. During the study period, dementia cases were identified in 4,800 of the 44,195 patients with migraine and 3,757 of the 44,915 matched controls. The incidence rate of dementia was 139.6 (95% confidence interval [CI], 135.7-143.5) and 107.7 (95% CI, 104.3-111.1) cases per 10,000 person-years in patients with migraine and matched controls, respectively. Patients with migraine had a 1.30 (hazard ratio [HR], 1.30; 95% CI, 1.25-1.35), 1.29 (HR, 1.29; 95% CI, 1.23-1.35), 1.35 (HR, 1.35; 95% CI, 1.19-1.54), 1.36 (HR, 1.36; 95% CI, 1.00-1.83), and 1.30 (HR, 1.30; 95% CI, 1.17-1.45) times higher risk of developing all-cause dementia, Alzheimer's dementia, vascular dementia, mixed or other specified dementias, and unspecified dementia than their matched controls, respectively.

Conclusion: Our results suggest that migraine is associated with an increased risk of subsequent dementia. Further research is warranted to confirm these findings and to reveal the underlying mechanisms.
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1. College of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학교실) > 1. Journal Papers
Yonsei Authors
Park, Eun-Cheol(박은철) ORCID logo https://orcid.org/0000-0002-2306-5398
Jang, Suk Yong(장석용)
Jang, Sung In(장성인) ORCID logo https://orcid.org/0000-0002-0760-2878
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