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:
GEO1_EG identifies the household's governorate within Egypt in all sample years. Governorates are the first level administrative units of the country. GEO1_EG is spatially harmonized to account for political boundary changes across census years. Some detail is lost in harmonization; see the comparability discussion. A GIS map (in shapefile format), corresponding to GEO1_EG can be downloaded from the GIS Boundary files page in the IPUMS International web site.
The full set of geography variables for Egypt can be found in the IPUMS International Geography variables list. For cross-national geographic analysis on the first and second major administrative level refer to GEOLEV1, and GEOLEV2. More information on IPUMS-International geography can be found here.
Comparability — General
Where boundaries changed over time, units were harmonized to create units with boundaries that remain stable over time.
Giza and Cairo are combined in GEO1_EG, refer to GEO1_EG2006 for greater details and separate enumeration of the two units.
- The boundary between Menoufia and Behera governorates changed between 1986 and 1996.
- The governorate of 6th October City received its own code in 2006. It subsequently split from Giza in 2008 but the changes were reversed soon after.
- The governorate of Helwan received its own code in 2006. It subsequently split from Cairo in 2008 but the changes were reversed soon after.
- Upon splitting Helwan and 6th October City, the boundary between Giza and Cairo changed.
- Luxor and Qena are combined in GEO1_EG. Luxor was created from Qena in 2009, but 1996 (GEO1_EG1996) and 2006 (GEO1_EG2006) samples have separate data for Luxor and Qena.
- All households
- Egypt: 1986, 1996, 2006