title: Prevalence and incidence of cluster headache in the Republic of San Marino.
abstract: Based on a preceding survey performed in 1985, the authors estimated the prevalence and incidence of cluster headache (CH) in the Republic of San Marino (26,628 inhabitants at 31 December 1999). All cases were diagnosed by direct interview according to International Headache Society criteria. The prevalence rate was 56/100,000 (95% CI 31.3 to 92.4), and the incidence rate was 2.5/100,000/year (95% CI 1.14 to 4.75). Most cases showed rare clusters. This is the first prospective study on the incidence of CH.
authors: Neuroepidemiology Unit, Institute of Clinical Neurology, Bologna, Italy.
authors: C
authors: C
authors: Tonon
authors: S
authors: S
authors: Guttmann
authors: M
authors: M
authors: Volpini
authors: S
authors: S
authors: Naccarato
authors: P
authors: P
authors: Cortelli
authors: R
authors: R
authors: D'Alessandro
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003027:Cluster Headache / Q000453:epidemiology*; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D007407:Interviews as Topic; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D012496:San Marino / Q000453:epidemiology