Colon cancer survival after radical surgery performed in hospitals of the Arkhangelsk region: a population-based analysis

Background. Surgery is the main method of treatment of colon cancer (CC). Radical surgery performed in non-specialized hospitals can lead to the adverse outcomes. The aim of this study was to assess CC survival after radical surgery performed in state hospitals of the Arkhangelsk region (North-West Russia) in 2010-21. Material and Methods. Data on all the 2142 cases of radical surgery of CC were obtained from the Arkhangelsk regional cancer registry (ARCR). One- and five-year cancer-specific survival rates were estimated by the survival tables; cumulative survival function was calculated by the Kaplan-Meier method. Univariate and multiple Cox regression analysis was carried out to identify independent predictors associated with CC death risk after radical surgery in state hospitals (incl. sex, age at the time of diagnosis, topography, morphology and stage of CC).