Figure 3
From: Survival in non-small cell lung cancer patients with versus without prior cancer
Impact of prior cancer on survival in NSCLC patients according to prior cancer characteristics. HRs were calculated using 3 Cox proportional hazards models on all-cause mortality in NSCLC patients. In Model 1, NSCLC patients were divided into no prior cancer, smoking-related prior cancer, and non–smoking-related prior cancer. In Model 2, NSCLC patients were divided into no prior cancer, prior cancer with better prognosis, and prior cancer with poorer prognosis. In Model 3, NSCLC patients were divided into no prior cancer, localized prior cancer, regional prior cancer, and distant prior cancer. The No Prior Cancer Group was used as the reference category. Abbreviations: CI, confidence interval; HR, hazard ratio; NSCLC, non-small cell lung cancer.
