Codes and Frequencies
Most IPUMS data transformations are performed using variable harmonization tables that specify how each value in the source data is recoded. Some variables also require programming logic in addition to the harmonization table. The harmonization documents for this variable are:
DHS_IPUMSI_NG provides geographic codes for Nigeria that match those in the DHS and IPUMS-International databases. This variable can be used to link contextual area data from IPUMS-DHS to IPUMS-International or vice versa. The codes in DHS_IPUMSI_NG indicate the major administrative unit in which the household was enumerated or surveyed.
GIS shapefiles for Nigeria can be downloaded here.
Comparability — General
The units in DHS_IPUMSI_NG are harmonized across DHS and IPUMS-International samples to account for changing boundaries in the major administrative level of geography. The time span for DHS samples are 2008 to 2018 and corresponds to the census samples from 2006 to 2010 in IPUMS-International.
Nigeria 1990, 1999, and 2003 DHS samples are excluded from DHS_IPUMSI_NG due to inconsistent boundaries and geographic units.
- All households
- Nigeria: 2006, 2007, 2008, 2009, 2010