The Global Burden of Headache.

Area of Science:

• Neurology
• Epidemiology
• Public Health

Background:

• Headache prevalence and impact were poorly understood globally at the turn of the century.
• Lifting The Burden (LTB) initiated the Global Campaign against Headache to address this knowledge gap.
• High prevalence of headache disorders and their negative consequences were documented worldwide.

Purpose of the Study:

• To determine the global scope and scale of headache burden.
• To inform interventions for reducing the worldwide burden of headache disorders.
• To review epidemiological studies and propose improved headache care strategies.

Main Methods:

• Conducted population-based epidemiological studies across all world regions.
• Analyzed data on prevalence of migraine, tension-type headache, and medication-overuse headache.
• Reviewed existing literature and proposed interventions for headache care provision.

Main Results:

• Demonstrated high prevalence of headache disorders globally.
• Established strong associations between headache disorders and reduced quality of life, productivity loss, and economic costs.
• Headache disorders identified as a leading cause of disability worldwide, with migraine being a major contributor in young adults.

Conclusions:

• Urgent interventions are required to mitigate the global burden of headache disorders.
• A three-tier system for structured headache services is proposed to improve care.
• Challenges remain in delivering effective, efficient, and equitable headache care, particularly in low-income nations.