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Item #
Length
Source of Standard
Year Implemented
Version Implemented
Year Retired
Version Retired
1775
2
NAACCR
2018
18
NAACCR XML: Tumor.recordNumberRecode
Description
This variable sequentially numbers a person's tumors within each dataset. The ordered values are based on date of diagnosis and then sequence number central. This variable is used as part of the algorithm for calculating the survival time recode variables (NAACCR items 1782-1788) and is used for survival, prevalence, and multiple primary – standardized incidence ratio analyses in SEER*Stat.
Rationale
These changes will benefit the cancer surveillance community by facilitating the application of standard methods for survival analysis. Beginning with data collected in the November 2014 call for data, NAACCR has published Cancer in North America Volume 4: Cancer Survival in the United States and Canada, which provides cancer survival estimates on a wider population than was previously available. However, at present IMS must pre-process the datasets that are included in the NAACCR survival dataset to calculate the four new standard data items, SEER Cause Specific COD [1914], SEER Other COD [1915], Record Number Recode [1775], and Vital Status Recode [1762]. For registries that do not submit cause of death information to NAACCR, it is not possible to calculate the 'SEER cause-specific death classification' or 'SEER other cause of death classification' variables. The 4 new data items will assist individual registries in performing survival analyses using their own data.
Codes
01 Record number 01 for patient in database 02 Record number 02 for patient in database ... 99 Record number 99 for patient in database