Japan Medical Center Finds Five-Year Cancer Survival Rate Is 66.4%



Japanese data

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The National Cancer Center Japan has released the five-year survival rate for various cancers based on the analysis of data from approximately 650,000 patients.

The National Cancer Center Japan recently announced that the five-year survival rate for patients with cancer was 66.4% from 2010 to 2011. The statistics were based on data from 318 medical institutions, including core cancer treatment hospitals, covering approximately 650,000 patients. Deaths other than cancer were not included in the calculation of survival rates. Five-year survival is a criterion used for treatment. The figure represents a 0.3 percentage point increase over the survival rate of cancer patients diagnosed between 2009 and 2010. The three-year survival rate for cancer patients diagnosed in 2013 was 72.4%, an increase of 0.3 percentage point year on year.

Five-year survival by cancer type was high, at over 90%, for female breast cancer and prostate cancer. In contrast, pancreatic cancer, which is difficult to detect at an early stage, had low survival rates of 18.0% over three years and 9.8% over five years.

The center has also released survival rates for various stages of cancer. The figures show that the earlier the stage at which cancer is detected, the higher the chance of survival. The different survival rates for each of the five main stages are listed in the graphs below.






The center also analyzed the age of cancer patients in relation to survival rates and found a trend towards lower survival rates in the elderly, with younger patients having a higher chance of survival than older patients at the same stage of cancer. An obvious factor underlying this result is that elderly patients sometimes cannot receive treatment because of other serious illnesses they have contracted or general physical frailty. The center emphasized that survival rates are only one point of reference, so it is important that patients consult with physicians who can better assess their physical condition.

(Translated from Japanese. Banner photo © Pixta.)


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