期刊
CEPHALALGIA
卷 34, 期 6, 页码 409-425出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0333102413512033
关键词
Chronic headache; medication-overuse headache; epidemiology; prevalence; classification; International Classification of Headache Disorders
资金
- IMK Almene Fond
Background Case definitions of medication-overuse headache (MOH) in population-based research have changed over time. This study aims to review MOH prevalence reports with respect to these changes, and to propose a practical case definition for future studies based on the ICHD-3 beta. Methods A systematic literature search was conducted to identify MOH prevalence studies. Findings were summarized according to diagnostic criteria. Results Twenty-seven studies were included. The commonly used case definition for MOH was headache 15 days/month with concurrent medication overuse 3 months. There were varying definitions for what was considered as overuse. Studies that all used ICHD-2 criteria showed a wide range of prevalence among adults: 0.5%-7.2%. Conclusions There are limits to comparing prevalence of MOH across studies and over time. The wide range of reported prevalence might not only be due to changing criteria, but also the diversity of countries now publishing data. The criterion headache occurring on 15 days per month with concurrent medication overuse can be applied in population-based studies. However, the new requirement that a respondent must have a preexisting headache disorder has not been previously validated. Exclusion of other headache diagnoses by expert evaluation and ancillary examinations is not feasible in large population-based studies.
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