Definition
GEO_MG2008 (V101_MG2008) indicates the region of Madagascar where the respondent was interviewed. DHS units in the 2008 Madagascar survey are equivalent to regions.
Other sample years have their own sample-specific geography variables. There is also an integrated variable, GEO_MG1992_2008, that provides spatially consistent units over time.
A GIS map for GEO_MG2008 (in shapefile format) can be downloaded from the DHS Program Spatial Data Repository [URL omitted from DDI.] Boundaries page.