title: [Multiple sclerosis in ethnic groups of Bashkortostan Republic].
abstract: Clinical presentations and course of multiple sclerosis (MS) have been studied in ethnic groups of Bashkortostan Republic. An analysis of 4 groups of patients, 234 Tartars, 80 Bashkirs, 22 Chuvashes and 237 Russians, revealed that the prevalence of MS was the least in the Bashkirs--3 times less than in Tartars (chi2 = 7.84; p < 0.05) and 2 times less than in Russians (chi2 = 2.95; p < 0.05). In all the groups, the disease more often developed in women. Mean age at disease onset in women was less in Tartars and Chuvashes and by 1 year more in Bashkirs. In debut, polysymptomatic beginning and movement disorders prevailed in patients with different ethnic origin. The higher prevalence of MS in Tartars, Russians and Chuvashes as compared to Bashkirs is probably caused by historically developed isolation of populations in the territory of the republic and by the features of marriage traditions.
authors.forename: K Z
authors.initials: KZ
authors.lastname: Bakhtiiarova
authors.forename: R V
authors.initials: RV
authors.lastname: Magzhanov
mesh_terms: D000293:Adolescent; D000328:Adult; D001486:Bashkiria / Q000453:epidemiology; D005006:Ethnicity / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D009103:Multiple Sclerosis / Q000208:ethnology*; D015995:Prevalence; D011795:Surveys and Questionnaires