* indicates required field
Length: 1
Source of Standard: Census
Section Name: Demographic
Year Implemented: 2011
Version Implemented: 12.1
Record Types: A, M, C, I
XML NAACCR ID: censusBlockGroup2010
Parent XML Element: Tumor
Required Status:
NPCR Collect: . - No recommendations
CoC Collect: . - No recommendations
SEER Collect: R - Required
CCCR Collect: . - No recommendations
Description:
This field is provided for coding the block group of patient’s residence at time of diagnosis, as defined by the 2010 Census.
Rationale:
A block group is a subdivision of a census tract designed to have an average of 1500 people, versus a census tract's average of 4500 people. All land area in the United States is described by a census block group in the 2010 Census. The Census Bureau publishes detailed population and socioeconomic data at this level. Block groups thus offer a high level of specificity for geographical and socioeconomic analyses.
A block group has no meaning in the absence of a census tract. Refer to Census Tr Certainty 2010 [367] to ascertain basis of assignment of Census Block Group 2010.
Clarification:
Comment
Numerous registries find the distinction between “attempted, could not be determined” (zero) and “not coded” (blank) to be useful for geocoding planning purposes.
General Notes:
Note: The values 1 through 9 are nominal, with no hierarchy of values. This number determines the first digit of all the blocks which comprise the block group; for instance, census block group 3 would contain blocks numbered 3000 to 3999.
Item Data Type:
digits
Allowable Values
0-9, blank
Codes:
0 |
Census block group assignment was attempted, but the value could not be determined |
|---|---|
1-9 |
Census block group values as defined by the Census Bureau |
Blank |
Census Block Group 2010 not coded |