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Context: Lung cancer is the most leading cause of cancer mortality worldwide. Despite being the leading cause of cancer death, there are a few studies that have characterized survival in the geographical area in Kermanshah, Iran. Aims: The current investigation was conducted to identify factors associated with survival after lung cancer in Iranian patients with lung cancer. Settings and Design: The study has designed a retrospective study of 73 patients with lung cancer in the clinic of oncology and hematology. Subjects and Methods: The data were analyzed using SPSS package software version 16. The log-rank test was performed to determine the relationship between different variables and the survival of patients. Multivariable Cox proportional hazards models were used to estimate hazard ratios (HRs) for overall mortality. Kaplan–Meier method and Cox proportional hazards model were used to analyze the survival rate at different times after diagnoses and HRs, respectively. Results: The average age of patients was 59.49 ± 11.12. Patients with non-small cell adenocarcinoma had more prevalence (65.8%), and 68.5% of them were in Stage IV. 1-, 2-, and more than 2-year survival rates for patients with non-small cell lung carcinoma are 28%, 23%, and 17%, respectively. There was a significant relationship between survival and maintenance treatment (P = 0.003). Conclusion: The most obvious finding to emerge from this study is that the survival time in patients received maintenance therapy is higher than other patients. Further studies with large sample size are required with a focus on factors such as the risk of lung cancer and lung cancer incidence patterns.
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