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Editor,—The purpose of the current study, which was carried out in 1995, was to explore the prevalence of mental disorders, including tobacco use, in Udmurtia. Udmurtia is a former Autonomous Soviet Socialist Republic that currently is a Constituent Republic of the Russian Federation. According to the census of 1989, the population of the republic is about 1.6 million. The total rural population is 485 890, with the majority of the population being of Udmurt (57.8%) and Russian (37.1%) ethnic origin. The Udmurts are similar to Estonians, Finns, and Hungarians in that they belong to the group of Finno-Ugric nations.
The study sample of 855 subjects was drawn by systematic random sampling from the lists of rural inhabitants in the …