Variation in migraine prevalence by race

Area of Science:

• Neurology
• Epidemiology
• Genetics

Background:

• International migraine prevalence estimates vary significantly across different populations.
• Observed lower prevalence in African and Asian populations compared to European and North American populations.
• Potential contributing factors include cultural, environmental, and genetic influences.

Purpose of the Study:

• To investigate racial differences in migraine prevalence within the United States.
• To compare migraine prevalence among Caucasian, African American, and Asian American populations.
• To assess whether genetic factors play a predominant role in observed racial disparities.

Main Methods:

• A telephone survey was conducted with 12,328 adults (aged 18-65) in Baltimore County, Maryland.
• Random-digit dialing was used for participant selection.
• Migraine diagnoses were established using International Headache Society criteria.

Main Results:

• Migraine prevalence was highest in Caucasian women (20.4%) and men (8.6%).
• Prevalence was lower in African American (women: 16.2%, men: 7.2%) and Asian American (women: 9.2%, men: 4.2%) groups.
• African Americans reported more pain but less disability and nausea/vomiting compared to Caucasians.

Conclusions:

• Migraine prevalence in the US is highest among Caucasians, followed by African Americans, then Asian Americans.
• While socioeconomic and environmental factors may play a role, race-related genetic differences are suggested as a primary explanatory factor.
• Further research into genetic vulnerability for migraine across diverse populations is warranted.