Impact of the СOVID-19 pandemic on cancer incidence in patients undergoing cancer screening during annual health checkup (population-based study)

Background . During the COVID-19 pandemic, annual adult check-ups have been postponed, resulting in cancer screening disruption. The aim of study was to evaluate changes incidence and stage distribution malignancies included program during pandemic using Arkhangelsk Regional Cancer Registry (ARRC). Material Methods We assessed rates for colon, rectum, lung, breast, cervix, uterine body, ovary, prostate kidney cancers over periods 2018–19 2020–21. Results. A total 12354 cases with 9 were selected: 6680 period 5674 (-15.1 %) 2020-21. most significant decrease crude age-standardized registered patients lung (-18.0–18.1 %), rectum (-25.1–25.9 cervix (-33.6–36.9 cancers, p<0.001. not signifcant cancers. proportion I decreased (-20.0 %, from 14.8 % 11.8 (-20.2 20.9 16.7 (-37.1 53.2 33.5 %). In increased by 30 (from 19.5 25.4 17.6 45.9 54.0 respectively. reduction early stages observed cervical cancer. Conclusion Postponed health checkups due disruptions led substantial reductions new being diagnosed, mainly cervical, colon rectal No other Further analysis mortality survival is required. Key words: checkup, screening, incidence, distribution>˂0.001. Conclusion.