Parkinson's disease in Russia: prevalence and incidence

The results of the regional studies on the frequency of Parkinson''s disease (PD) and the incidence of it in Russia have been generalized, the main factors that determine the quality of the estimates of this disease epidemiological indicators have been identifyd. The article summarizes data from 19 original studies on the epidemiology of parkinsonism and Parkinson''s disease in Russia published between 2005-2015. Due to the statistical heterogeneity of the primary results computational analytics was not applied to the data; however, data consolidation allowed to perform a trend analysis of epidemiological indicators. The methodological basis of the majority of studies was medical aid appealabil-ity; two of the studies used door-to-door surveys. One of the studies returned questionably low epidemiological indicators obtained from the medical records, and the rest showed the standardized prevalence of 30.0-139.9/100,000 and incidence of 7.63-21.8/100,000 per year. Contribution of Parkinson''s disease to the nosological structure of parkinsonism was >61.3%. Estimate of the number of patients with PD in Russia is approximately 210,000 people. Conclusions are made regarding the prevalence of PD in Russia according to the cross-cutting research on the level of indicators in the Western countries. The prevalence of PD by appealability is 2-3 times less than the prevalence in continuous research, both national and foreign. The incidence of PD, demonstrated in half of the studies, is stable from region to region and is comparable with the universally recognized values.