title: A pilot methodological validation study for a population-based survey of the prevalences of migraine, tension-type headache and chronic daily headache in the country of Georgia.
abstract: We report the methodology of an epidemiological survey of the prevalences of migraine, tension-type headache and chronic daily headache in Georgia. Medical residents visited adjacent households in Tbilisi to interview a pre-defined target of 100 biologically unrelated subjects. All respondents reporting headache in the previous year, as well as random 20 non-headache controls, were examined by a neurologist. The response rate was 70%. Of 156 respondents, 93 were biologically unrelated and 45 (48%) reported headache in the previous year. Eight subjects fulfilled all IHS criteria for migraine (1-year prevalence 8.6% [95% CI: 2.9-14.3%]), and 13 had probable migraine, meeting all but the criterion for duration. Nineteen had tension-type headache (20.4% [95% CI: 12.2-28.6%]) and five had chronic daily headache (5.4% [95% CI: 1-10.0%]). In comparisons of diagnoses by questionnaire and neurologist (considered the gold standard), sensitivities for the questionnaire of 89% for migraine and 67% for tension-type headache were calculated (overall kappa=0.74).
authors.affiliation: Department of Neurology, University of Essen, Hufelandstrasse 55, DE-45122, Essen, Germany. zaza.katsarava@uni-due.de
authors.forename: Zaza
authors.initials: Z
authors.lastname: Katsarava
authors.forename: Maka
authors.initials: M
authors.lastname: Kukava
authors.forename: Ekaterine
authors.initials: E
authors.lastname: Mirvelashvili
authors.forename: Alexander
authors.initials: A
authors.lastname: Tavadze
authors.forename: Anna
authors.initials: A
authors.lastname: Dzagnidze
authors.forename: Mamuka
authors.initials: M
authors.lastname: Djibuti
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Steiner
mesh_terms: D000328:Adult; D018672:Community Health Planning; D016001:Confidence Intervals; D005260:Female; D005846:Georgia (Republic) / Q000453:epidemiology; D020773:Headache Disorders / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000453:epidemiology*; D010865:Pilot Projects; D015995:Prevalence; D015203:Reproducibility of Results; D012737:Sex Factors; D018781:Tension-Type Headache / Q000453:epidemiology*