Description

SPLITNUM provides the original number of person records that are included in the sampled unit in the 100% datasets. These person records all have the same original 100% serial number (SPLITHID).

As a part of IPUMS data processing, group quarters units containing more than 60 people were split into 1-person households, each with their own unique value in the IPUMS SERIAL variable. For this reason, the NUMPREC value for a group quarters unit containing more than 60 people will always be 1.

Researchers needing to analyze intact group quarters units containing more than 60 people (such as the residents of a large prison or poorhouse) should use SPLITNUM instead of NUMPREC.

The (flag) variable SPLIT can be used to identify all records that were split into a 1-person household.

SPLITNUM is a 4-digit numeric variable which provides the original number of person records that are included in the sampled unit in the 100% datasets. These person records all have the same original 100% serial number (SPLITHID).

Comparability

This variable is only available in the 100% datasets.

Universe

Availability

• 2023: --
• 2022: --
• 2021: --
• 2020: --
• 2019: --
• 2018: --
• 2017: --
• 2016: --
• 2015: --
• 2014: --
• 2013: --
• 2012: --
• 2011: --
• 2010: --
• 2009: --
• 2008: --
• 2007: --
• 2006: --
• 2005: --
• 2004: --
• 2003: --
• 2002: --
• 2001: --
• 2000: --
• 1990: --
• 1980: --
• 1970: --
• 1960: --
• 1950: 100%
• 1940: 100%
• 1930: 100%
• 1920: 100%
• 1910: 100%
• 1900: 100%
• 1880: 100%
• 1870: 100%
• 1860: 100%
• 1850: 100%

• 2023: --
• 2022: --
• 2021: --
• 2020: --
• 2019: --
• 2018: --
• 2017: --
• 2016: --
• 2015: --
• 2014: --
• 2013: --
• 2012: --
• 2011: --
• 2010: --
• 2009: --
• 2008: --
• 2007: --
• 2006: --
• 2005: --
• 2000: --
• 1990: --
• 1980: --
• 1970: --
• 1930: --
• 1920: --
• 1910: --

Flags

Editing Procedure

There is no editing procedure available for this variable.