THE INCIDENCE OF UPPER RESPIRATORY CANCER AMONG THE POPULATION OF TOMSK R

Abstract

Tomsk region refers to the areas of increased risk of malignancies, including laryngeal and upper respiratory tract cancers, which account for 2.0 % of all cancer cases. Approximately 83 new cancer cases (70 % in males) are annually diagnosed, with a tendency to increase. In 2014, the standardized incidence rate of upper respiratory tract cancer (URTC) was 7.7 per 100,000 men and women. The incidence rate was 6.7 times higher in men than in women. Laryngeal cancer was the most common malignancy in both men (67.7 %) and women (60.0 %). The age-standardized mortality rate of laryngeal cancer was 2.7 per 100,000 of population. Among patients registered at the end of 2014, 1.1 % patients were diagnosed with laryngeal cancer and 0.3 % with pharyngeal cancer. The laryngeal cancer incidence in the Tomsk region was lower than that in the Russian Federation as a whole. The rates of laryngeal and pharyngeal cancer detection at prophylactic medical examinations remain low (5.9 % and 1.5 %, respectively), and 1-year lethality rates are high (65.2 % and 28.6 %, respectively). Introduction of the program on pre-cancer and early laryngeal cancer detection into routine clinical practice allowed us to identify diagnostic errors in 16.3% of cases, verify laryngeal cancer and to form groups at high risk for laryngeal cancer in 20.6 % of cases.