Impact of smoking on mortality of patients with non-small cell lung cancer

Thoracic Cancer
Seung Jun LeeYoung Whan Kim

Abstract

Cigarette smoking is one of the major causes of lung cancer. However, the correlation between smoking status and the survival of patients with lung cancer is uncertain. The present study aimed to evaluate the impact of smoking status on the mortality of patients with non-small cell lung cancer (NSCLC). The medical records of 313 patients newly diagnosed with NSCLC between January 2005 and January 2006 were reviewed. Eligible patients were divided into ever-smokers (221 patients) and never-smokers (92 patients), and the overall survival and clinical characteristics of the two groups were compared. Predictors of survival were analyzed using Cox's proportional hazards regression. In ever-smokers, the mean age was higher, and male gender and squamous histology were predominant compared to never-smokers. The median survival time was longer in never-smokers (21.1 vs. 41.9 months, ever-smokers vs. never-smokers, respectively; P = 0.027). Overall survival estimates at 12, 24, and 60 months were 62.9 versus 82.6%, 43.4 versus 65.2%, and 31.2 versus 42.4%, in each group. Advanced age, advanced disease stage (stages III and IV), and coexistence of interstitial lung disease were analyzed as independent risk factors for shorter survival. Al...Continue Reading

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Citations

Jul 19, 2018·Cancer Medicine·Sandjar DjalalovJeffrey S Hoch
Jul 2, 2019·The Journal of International Medical Research·Ning LiBaoqing Sun
Apr 30, 2021·BioDrugs : Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy·Dmytro TrukhinUNKNOWN STELLA Investigators

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