Medication-overuse headache (MOH) is defined by the International Classification of
Headache Disorders as a headache in patients with a pre-existing primary headache …

This study, which is a part of the initiative'Lifting The Burden: The Global Campaign to
Reduce the Burden of Headache Worldwide', assesses and presents all existing evidence of …

The aim of this review was to summarize population-based studies reporting prevalence
and/or incidence of chronic migraine (CM) and to explore variation across studies. A …

Background Headache disorders and psychiatric disorders are both common, while
evidence, mostly pertaining to migraine, suggests they are comorbid more often than might …

Medication overuse in primary headache disorders is a worldwide phenomenon and has a
role in the chronification of headache disorders. The burden of disease on individuals and …

The burden associated with headache is a major public health problem, the true magnitude
of which has not been fully acknowledged until now. Globally, the percentage of the adult …

Chronic migraine (CM) and episodic migraine (EM) are part of the spectrum of migraine
disorders, but they are distinct clinical entities. Population-based studies have shown that …

Objectives.—In the absence of reliable data on the prevalence and burden of primary
headache disorders in the mainland of China, a population‐based survey was initiated by …

The etiology and prognosis of chronic daily headache (CDH) are not well understood. The
aim of this study is to describe factors that predict CDH onset or remission in an adult …

Medication overuse and subsequent medication-overuse headache (MOH) is a growing
problem worldwide. Epidemiological data suggest that up to 4% of the population overuse …