On average, how long will a lung cancer patient have to live without treatment?

Lung ca survival: The length of time someone lives depends heavily on how advanced (what stage) a lung cancer is when found. If it is stage 1 or 2, therapies may be very helpful in extending life. If late-stage (3, 4) when found, survival usually ranges from 6 mos to 2 yrs. Very few people with stage 3, 4 disease live five years after diagnosis. If found at stage 1, however, 1/2 of patients can be "cured".

Variable: Different cell types different risk factors different discovery different stages metastatic overall, about 40 % are surviving at five years with treatment--so less without!