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Published on: June 2, 2014
Chronic migraine: classification and comparisons
Z Katsarava1, A Manack, M-S Yoon
1Department of Neurology, University of Essen, Hufelandstrasse 55, Essen, Germany. Zaza.Katsarava@uk-essen.de
Cephalalgia : an International Journal of Headache
|January 12, 2011
Summary
Chronic migraine (CM) prevalence differs by definition. While CM groups share similar profiles, they differ significantly from high-frequency episodic migraine (HFEM) and low-frequency episodic migraine (LFEM) patients.
Area of Science:
- Neurology
- Epidemiology
- Public Health
Background:
- Chronic migraine (CM) diagnosis relies on various criteria, impacting prevalence estimates.
- Understanding the epidemiological profiles of different migraine classifications is crucial for clinical practice and research.
Purpose of the Study:
- To field test different chronic migraine (CM) criteria.
- To compare the epidemiological profiles of CM with high-frequency episodic migraine (HFEM) and low-frequency episodic migraine (LFEM).
Main Methods:
- A random sample of 18,000 adults aged 18-65 in Germany received questionnaires.
- Epidemiological data for CM, LFEM, and HFEM were analyzed using descriptive statistics and inferential tests.
Main Results:
- Prevalence varied by CM definition, with CM_III being the most common (2.0%).
- No significant differences were observed in age, gender, BMI, education, smoking, or alcohol consumption among CM groups.
- Epidemiological profiles of CM (CM_III) significantly differed from LFEM and HFEM.
Conclusions:
- Migraine prevalence estimates are sensitive to the case definition used.
- Epidemiological characteristics of chronic migraine patients differ from those with episodic migraine.
- Further field testing is needed to optimize CM definitions for clinical and research purposes.
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