怎樣解讀腸癌生存率

來源: fuz 於 2019-01-25 13:37:58 [檔案] [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次 (9832 bytes)

本文內容已被 [ fuz ] 在 2019-01-25 13:50:43 編輯過。如有問題，請報告版主或論壇管理刪除.

看到樓下某貼中提到：“當一個37歲，腸癌4期的病人問她的腫瘤醫生關於化療時，醫生告訴她：化療後的存活率是67%。。接著這位病人又問了非常關鍵的問題：如果不做化療，存活率是多少呢？醫生告訴她，57%！”

對此感到十分驚喜，啥時候腫瘤治療又有了新突破，那俺可有機會多活幾年了。趕緊查，結果不給力。

下麵是美國癌協網站報道，這個協會可是準專業水平的，不是民科喲。

請注意那個相對生存率（Relative survival rates）對老年患者尤為重要。

全文請見 https://www.cancer.org/cancer/colon-rectal-cancer/detection-diagnosis-staging/survival-rates.html

摘要

What is a 5-year survival rate?

Statistics on the outlook for a certain type and stage of cancer are often given as 5-year survival rates, but many people live longer – often much longer – than 5 years. The 5-year survival rate is the percentage of people who live at least 5 years after being diagnosed with cancer. For example, a 5-year survival rate of 90% means that an estimated 90 out of 100 people who have that cancer are still alive 5 years after being diagnosed. Keep in mind, however, that many of these people live much longer than 5 years after diagnosis.

Relative survival rates are a more accurate way to estimate the effect of cancer on survival. These rates compare people with colorectal cancer to people in the overall population. For example, if the 5-year relative survival rate for a specific type and stage of cancer is 90%, it means that people who have that cancer are, on average, about 90% as likely as people who don’t have that cancer to live for at least 5 years after being diagnosed.

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Colon cancer survival rates, by stage

The numbers below come from the National Cancer Institute’s SEER database, looking at people diagnosed with colon cancer between 2004 and 2010.

The 5-year relative survival rate for people with stage I colon cancer is about 92%.
For people with stage IIA colon cancer, the 5-year relative survival rate is about 87%. For stage IIB cancer, the survival rate is about 65%.
The 5-year relative survival rate for stage IIIA colon cancers is about 90%. For stage IIIB cancers the survival rate is about 72%, and for stage IIIC cancers the survival rate is about 53%.
Colon cancers that have spread to other parts of the body are often harder to treat and tend to have a poorer outlook. Metastatic, or stage IV colon cancers, have a 5-year relative survival rate of about 12%. Still, there are often many treatment options available for people with this stage of cancer.

Rectal cancer survival rates, by stage

The numbers below come from the National Cancer Institute’s SEER database, looking at people diagnosed with rectal cancer between 2004 and 2010.

The 5-year relative survival rate for people with stage I rectal cancer is about 88%.
For people with stage IIA rectal cancer, the 5-year relative survival rate is about 81%. For stage IIB cancer, the survival rate is about 50%.
The 5-year relative survival rate for stage IIIA rectal cancers is about 83%. For stage IIIB cancers the survival rate is about 72%, and for stage IIIC cancers the survival rate is about 58%.
Rectal cancers that have spread to other parts of the body are often harder to treat and tend to have a poorer outlook. Metastatic, or stage IV rectal cancers, have a 5-year relative survival rate of about 13%. Still, there are often many treatment options available for people with this stage of cancer.