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CBSUBFAM
Subfamily number (original Census Bureau classification)

Description

CBSUBFAM reports the subfamily number as originally classified by the Census Bureau. See the IPUMS subfamilies page for more information on subfamilies and their measurement.

Unlike the IPUMS analogue SUBFAM, CBSUBFAM is not based on the family interrelationship variables, and it does not identify unrelated subfamilies. Furthermore, the Census Bureau's procedures for identifying subfamilies are known to be unreliable, and only with the more recent ACS data do their procedures appear to yield consistent results.

Several people in two-person households in the 1970 samples are mistakenly classified by the Census Bureau as being in subfamily 1--a logical impossibility, since subfamilies cannot exist without at least two people other than the householder. They are correctly coded as not being in a subfamily in the Census Bureau's subfamily relationship (CBSFRELATE) and subfamily type (CBSFTYPE) variables. IPUMS has preserved this original error; users seeking to identify subfamily members in the 1970 samples should not use CBSUBFAM.

CBSUBFAM is useful mainly for users attempting to match the Census Bureau's summary files or published estimates; other users--particularly those analyzing change over time--are encouraged to use SUBFAM.

Codes and Frequencies



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Comparability

While the concepts measured by CBSUBFAM have not changed over time, the Census Bureau's procedures for identifying subfamilies have changed dramatically over the years. See this article for more information.

Universe

  • All persons.

Availability

United States
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: ACS; ACS 3yr; ACS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2004: All samples
  • 2003: All samples
  • 2002: All samples
  • 2001: All samples
  • 2000: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1960: 1%
  • 1950: --
  • 1940: --
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 2011: All samples
  • 2010: PRCS; PRCS 3yr; PRCS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1930: --
  • 1920: --
  • 1910: --

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.