OBJECTIVE

To analyze the indicators of 1-, 5- and 7-year survival of patients with lung cancer in the territory of the Tomsk region for the period from 2013 to 2022.

MATERIALS AND METHODS

In this study, 4413 (3426 men and 987 women) cases of intravitally detected malignant neoplasms of the lung from the population-based cancer registry of the Tomsk region for 2013—2022 were analyzed. Observed (OS), adjusted (AS) and relative survival of patients with lung cancer (LC) were calculated by sex, age, place of residence (urban and rural population), histological type and disease stages in Statistica 10.0 and Excel programs.

RESULTS

The observed survival of patients (both sexes) with LC in the Tomsk region amounted to: 1-year — 38.9%, 3-year — 18.5%, 5-year — 13.8%, 7-year — 11.2%. The difference between AS and OS ranged from 5.3% to 5.8%. Lower survival rates have been observed in the male population than in the female one. In the second 5-year study period (2018—2022, 2448 patients) compared to the first one (2013—2017, 1965 patients), there has been an increase of 1-year OS rates — by 4.4% (from 36.6±1.1 to 41.0±1.0%); 3-year OS — by 1.7% (from 40.7±1.1 to 48.1±1.1%). It has been noted that all survival rates decrease proportionally to the increase in age and stage of the disease. The one-year OS of people with LC in urban areas amounted to 41.7%, in rural areas — 33.9%; 5-year — 15.4% and 11.0%, respectively.

CONCLUSION

Despite some optimization of oncological care for patients with lung cancer, as evidenced by the improvement of survival in dynamics, its level remains insufficient, especially among elderly people and residents of rural areas. The main reason is the high rate of neglected lung cancer cases at initial diagnosis, that emphasizes the need to develop and implement a regional lung cancer screening program before the problem will be solved at the federal level.