This publication is an condensed version of the second annual report on the epidemiology of COVID-19 among patients on renal replacement therapy (RRT) in the Russian Federation in 2021 (the previous one, for 2020, was published in the Clinical Nephrology, 2021, No1).The report presents trends in the second year of the pandemic in terms of prevalence (morbidity) and mortality associated with COVID-19 infection, as well as overall mortality in patients on RRT (Table 1). The possible reasons for the changes that have occurred, recommendations for the further work of the nephrological service are discussed.
Data sources. Information about patients who received various types of RRT (HD, PD, Tx) was obtained from the reports of the leading experts in nephrology of the constituent entities of the Russian Federation for 2021, sent in the form of a special questionnaire to the analytical group of the Presidium of the Specialized Commission on Nephrology. Data were obtained from 83 out of 85 constituent entities of the Russian Federation (excluding the Moscow Region and the Republic of Mari El), covering 92% of the Russian population. Information on morbidity and mortality (total and related to COVID-19) of the entire population of Russia was obtained from the official reports of Rosstat for 2021.