Description

GEO_TZ1991 (V101_TZ1991) indicates the region of Tanzania where the respondent was interviewed. DHS regions in the 1991 Tanzania survey are equivalent to zones.

Other sample years have their own sample-specific geography variables. There are also integrated variables GEO_TZ1991_2015 and GEO_TZ1996_2015, that provide spatially consistent units over time. The 1991 Tanzania sample is excluded from GEO_TZ1996_2015 due to inconsistent boundaries. Greater geographic detail for the Tanzania 1991 sample can be found in GEOALT_TZ1991.

A GIS map for GEO_TZ1991 (in shapefile format) can be downloaded from the DHS Program Spatial Data Repository Boundaries page.

Comparability

GEO_TZ1991 (V101_TZ1991) is a country- and sample-specific variable and has no comparability issues.

Comparability - Standard DHS

GEO_TZ1991, like other V101 variables, is a geographic variable added during processing of the DHS data. V101 is included in all Phases of the DHS.

Universe