Stage

Five-year survival rate (%)

Non-small Cell Lung Cancer

Stage I

60-80% (or greater, depending upon the size of the tumor)

Stage II

50-60%

Stage IIIA (operable)

15-30%

Stage IIIA (inoperable) or Stage IIIB

10-20%

Stage IIIB with pleural effusion or Stage IV

10-15% (2-year survival)

Small Cell Lung Cancer

Limited disease

5-25%

Extensive disease

5% (2 year survival)