Definition
GEO_NE1998 (V101_NE1992) indicates the region of Niger where the respondent was interviewed. DHS units in the 1998 Niger survey are equivalent to grouped regions.
Other sample years have their own sample-specific geography variables. There is also an integrated variable, GEO_NE1992_2012, that provides spatially consistent units over time.
A GIS map for GEO_NE1998 (in shapefile format) can be downloaded from the DHS Program Spatial Data Repository [URL omitted from DDI.] Boundaries page.