The state of cancer care in Russia: epidemiology and survival of patients with the most common and life-threatening solid malignancies. Part 2 (a population-based study at the federal district level)

The first part of our research focused on studying the prevalence of major solid and life-threatening malignant neoplasms. In the second part, we examine the patterns of effectiveness of anti-cancer measures in Russia, calculating the observed and relative one-year survival rates. This became possible due to the formation of the population cancer registry at the federal district level. Notably, the standardized incidence and mortality rates for malignant neoplasms are similar across Russia, including the Northwestern Federal District, and therefore our materials reflect the overall state of cancer care on in the country, excluding national districts. The population covered by the population-based cancer registry of the Northwestern Federal District of Russia is approximately 14 million people (which is more than the population of Belarus, Latvia and Estonia combined), with over 1.5 million records in the database. Using this registry, we calculated the rates of observed and relative one-year survival for the most common and life-threatening solid malignant neoplasms. We also used data from the International Agency for Cancer Research and the directory of the N. N. Petrov Research Institute of Oncology (St. Petersburg). Data was processed using licensed programs MS Excel 2013–2016 and STATISTICA 6.1. The survival rates were calculated using the modified Eurocare program, along with mathematical, bibliographic, and statistical methods. For the first time in Russia, the age-related patterns of one-year survival in patients with the most common and life-threatening solid malignant neoplasms. The first population-based study of one-year survival rate dynamics in patients with major solid and life-threatening localizations of malignant neoplasms conducted in Russia at the federal district level revealed an increase in these rates, except for the results for elderly and long-lived groups.