The article discusses the features of dementia as an actual object of statistical research from various theoretical positions. The authors pay special attention to the fact that the results of the dementia spread in a modern rapidly aging society have such negative socio-psychological and other consequences that they cannot remain out of statistical science and practice sight. At the same time, the conclusion was drawn that the statistics of dementia currently lags behind the requirements of

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... time and does not allow a complete and comprehensive picture of such a massive disease of the twenty-first century. According to the authors, the indicators used in practice are not linked to each other yet, which does not permit a comprehensive statistical description of dementia yet. In this regard, the author's suggestions formulated in the article on structuring the system of indicators for statistics of dementia. They should take into account not only the extent, frequency and prevalence, but also the damage to society from such a serious disease, are of great practical importance.