Migraine: intelligence, social class, and familial prevalence

Area of Science:

• Neurology
• Epidemiology
• Genetics

Background:

• Previous hypotheses suggested a link between migraine, intelligence, and social class.
• The role of heredity in migraine has been debated.

Purpose of the Study:

• To investigate the association between migraine, intelligence, and social class in a general population sample.
• To assess the role of heredity in migraine through a family study.

Main Methods:

• A questionnaire-based study of a random adult population sample to assess headache types, intelligence, and social class.
• A family study involving first-degree relatives of individuals with and without migraine, using blinded headache history questionnaires.

Main Results:

• No evidence found linking migraine to higher intelligence or social class.
• A trend suggested more intelligent individuals with migraine, and those in higher social classes, were more likely to seek medical consultation.
• Migraine prevalence in families of migrainous probands was nearly double that of other families, but this difference was not statistically significant.

Conclusions:

• The association of migraine with intelligence and social class may stem from consultation patterns rather than inherent traits.
• Heredity appears to be less significant in migraine than commonly assumed.
• Family history should not be a defining criterion for migraine.