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 |
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Authors: | Zaza Katsarava Maka Kukava Ekaterine Mirvelashvili Alexander Tavadze Anna Dzagnidze Mamuka Djibuti Timothy J Steiner |
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Institution: | (1) Department of Neurology, University of Essen, Hufelandstrasse 55, DE-45122 Essen, Germany;(2) Department of Neurology, Tbilisi Medical University, Tbilisi, Georgia;(3) Department of Public Health, Tbilisi Medical University, Tbilisi, Georgia;(4) Partnership in Research and Action for Health, Tbilisi, Georgia;(5) Division of Neuroscience and Mental Health, Imperial College, London, UK |
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Abstract: | 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). |
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Keywords: | Epidemiology Headache disorders Migraine Prevalence Country of Georgia Willingness to pay |
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