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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Ann Thorac Surg. 2015 Apr 23;99(6):1921–1928. doi: 10.1016/j.athoracsur.2015.02.033

Table 3.

Results of multivariable Cox regression analysis identifying variables associated with long-term mortality in all patients with stage IIIB NSCLC.

Patient and Treatment Variable Hazard ratio (HR) with 95% Confidence Interval (CI) p-Value
Age 1.01 (1.01-1.01) <0.001
Male gender 1.18 (1.11-1.25) <0.001
Population > 250,000 0.94 (0.88-0.99) 0.032
Charlson Score = 1 (reference =0) 1.16 (1.09-1.25) <0.001
Charlson Score = 2 (reference=0) 1.28 (1.15-1.42) <0.001
Tumor Size (mm) 1.00 (1.00-1.01) <0.001
Surgical Resection 0.57 (0.52-0.62) <0.001