Prognostic factors in older patients with advanced non-small cell lung cancer in China
Aims and background. The human life expectancy and the incidence of lung cancer have increased dramatically in recent years. As a result, there is a high demand for the management of older patients with advanced non-small cell lung cancer (NSCLC) in clinical practice. The purpose of this study is to evaluate the prognostic factors in ≥65-year-old patients with advanced NSCLC in China. Method. This study involved a retrospective review of 78 ≥65-year-old patients with a diagnosis of NSCLC and at an advanced stage of disease, defined as stage IIIB or IV. All patients were followed up for a 3-year interval to determine the survival rates. Clinical data including gender, smoking history, comorbidities, performance status (PS), histological differentiation, disease stage, treatment and overall survival were recorded. The log-rank test was used to calculate survival rates. Multivariate Cox regression analysis was performed to determine independent prognostic factors. Results. The 1-year, 2-year and 3-year survival rates of the 78 patients were 44.9%, 23.1% and 9.0%, respectively. In univariate analysis by the log-rank test, the 3-year survival rate was significantly associated with PS (P >0.01), disease stage (P >0.01) and chemotherapy treatment (P >0.01). The results of multivariate Cox regression analysis confirmed that PS and disease stage were independent prognostic factors. Conclusion. The 3-year survival rate in ≥65-year-old patients with advanced NSCLC was significantly associated with PS, disease stage and chemotherapy. PS and disease stage were independent prognostic factors. Older patients with advanced NSCLC in China might benefit from chemotherapy.
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