Lung Cancer (Non-Small Cell)

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Early Detection, Diagnosis, and Staging TOPICS

Non-small cell lung cancer survival rates by stage

Survival rates are often used by doctors as a standard way of discussing a person’s prognosis (outlook). Some patients may want to know the survival statistics for people in similar situations, while others may not find the numbers helpful, or may even not want to know them. If you do not want to read about survival rates for non-small cell lung cancer, stop reading here and skip to the next section.

The 5-year survival rate refers to the percentage of patients who live at least 5 years after their cancer is diagnosed. Of course, many of these people live much longer than 5 years.

To get 5-year survival rates, doctors look at people who were treated at least 5 years ago. Improvements in treatment since then may result in a more favorable outlook for people now being diagnosed with non-small cell lung cancer.

The rates below are based on the stage of the cancer at the time of diagnosis. When looking at survival rates, it’s important to understand that the stage of a cancer does not change over time, even if the cancer progresses. A cancer that spreads or comes back is still referred to by the stage it was given when it was first found, but more information is added to explain the current extent of the cancer. (And of course, the treatment plan is adjusted based on the change in cancer status.)

The numbers below are survival rates published in 2007. They are calculated from the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) database, based on people who were diagnosed with non-small cell lung cancer between 1998 and 2000. Although they are based on patients diagnosed several years ago, they are the most recent published for survival by the current AJCC staging system.

These survival rates are for observed survival. Patients with cancer can die of other things, and these don’t take that into account.

    Stage

    5-year Observed
    Survival Rate

 

    IA

    49%

    IB

    45%

    IIA

    30%

    IIB

    31%

    IIIA

    14%

    IIIB

    5%

    IV

    1%

Survival rates are often based on previous outcomes of large numbers of people who had the disease, but they cannot predict what will happen to any person. Knowing the type and the stage of a person’s cancer helps estimate their outlook. But many other factors can also affect outlook, such as the genetic changes in the cancer cells, the treatment received, how well the cancer responds to treatment, and a person’s overall health. Even when taking these other factors into account, survival rates are at best rough estimates. Your doctor can tell you how the numbers above may apply to you.


Last Medical Review: 08/15/2014
Last Revised: 12/12/2014