Cancer incidence in Siberia and Russian Far East

The purpose of the study was to analyze the cancer incidence among the population living in Siberia and Russian Far East. Material and Methods. cancer incidence and mortality data collected from population-based cancer registries of the Russian Cancer Statistics, covering the period 2005-2018, were used. The crude and age-standardized cancer incidence rates were analyzed. Results. During the study period, 1 336 260 new cases of cancer were diagnosed in the regions of Siberia and Russian Far East. Of them, 77.2 % new cancer cases were registered in the Siberian Federal District. The highest percent of increase in the number of cancer cases in the Siberian Federal District was observed in the republics of Khakassia (84.8 %), Tuva (61.9 %), Buryatia (52.8 %), and Krasnoyarsk Krai (82.4 %). In the Far Eastern Federal District, the highest cancer incidence rates were registered in the Sakhalin Region (43.6 %) and Kamchatka Krai (41.8 %). The average age of patients in 2018 was 55.7 years (57.9 years for men and 53.7 years for women) compared to 57.4, 59.1 and 55.9 years, respectively in 2005. Lung cancer was the most commonly diagnosed cancer in men (19.5 %), whereas cancer of the female reproductive system was the most prevalent in women (38.4 %). The highest age-standardized cancer incidence rates in the Siberian Federal District in 2018 were observed in the Irkutsk region, Altai and Krasnoyarsk territories. In the Far Eastern Federal District, the highest age-standardized cancer incidence rates were observed in the Sakhalin and Magadan regions. Conclusion. The number of new cancer cases and age-standardized cancer incidence rate were shown to increase in Siberia and Russian Far East. The average age of men and women diagnosed with cancer decreased. The percent of increase in the age-standardized cancer incidence rate was higher in women than in men. Many of the most prevalent cancers were associated with the «westernized lifestyle» of developed countries.