SEER数据库2016年的分期数据是依据什么分期？
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我看2016年的是Derived SEER Clinical Stage Group
Item Length: 5
NAACCR Item #: 3610
NAACCR Name: Derived SEER Clin Stg Grp
New data item for diagnosis year 2016.
Description
This is a derived field.
The SEER Program developed an algorithm to calculate clinical stage group based on the clinical T, N,and M components and additional information as needed. Once the clinical T, N, and M categories are known, and other data items as appropriate, the algorithm will derive the stage group. The results are stored in this field, separate from the directly assigned clinical stage group (NAACCR #970).
这个是不是跟AJCC的TNM分期有区别啊？？求教，感谢！
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