Survival Analysis of 335 Patients With Colorectal Cancer Undergoing Combined Treatment
Abstract Introduction: If colorectal cancer (CRC) is diagnosed in the early stages, the patients will have higher survival rates. Although there might be some other factors which affect the survival rate, the kind of treatment available based on existing health and therapeutic facilities, is very important as well. The aim of this study was to explore the best type of treatment in colorectal cancer patients.Methods: The data of 335 patients with CRC in Kurdistan province were collected using population-based cancer registration system from first of March 2009 to 2014. Demographic and clinical- pathologic data of the patients were gathered through their medical and pathology records and going to the door of their houses. The cancer-specific survival rate were calculated using Kaplan-Meier survival curve, log-rank test, univariate and multivariate Cox regression. The data was analyzed using Stata 12 software. Results: One-year, three-year and five-year survival rates were %87, %57 and %33 respectively. The median of survival was 42.6 months. The five-year survival rate for those patients who had received both surgical and chemotherapy treatments was %55.8. There was less mortality rate among the patients who had received both surgical and chemotherapy treatments compared to those who had not received any treatment (HR=0.57, 95% CI 0.24-0.93).Conclusion: When CRC patients are treated using both surgical and chemotherapy treatments, they will have higher survival rate. Therefore, it is suggested to use both treatments for CRC patients.