GEOLEV2PROB is a 6-digit numeric variable with 3 implied decimal places.

Description

GEOLEV2PROB reports the probability that a DHS sample cluster was placed in the correct IPUMS International second-level administrative area in the complementary variable GEOLEV2.

The census-to-DHS geography crosswalk variable GEOLEV2 uses a 2-kilometer (for urban areas) or 5-kilometer (for rural areas) buffer around each DHS sample cluster, to account for cluster displacement (a confidentiality measure employed by The DHS Program). These cluster areas are then overlaid on harmonized census second-level administrative units. If the buffer crosses boundaries of two or more second-level administrative units, we use the code for the unit with the highest placement probability index.

GEOLEV2PROB reports the placement probability index to indicate the likelihood that the cluster was placed in the correct census administrative unit. If the entire buffer area fell within a single second-level administrate unit, GEOLEV2PROB is assigned the highest possible value of 100 percent. If a buffer area straddled more than one second-level administrative area, the placement probability index has a lower value. Countries with small second-level administrative units (e.g., Egypt, Nigeria) have lower placement probability index percentages on average compared to countries with larger second-level administrative units (e.g., Bangladesh, Mali).

Comparability

A GEOLEV2PROB code of 0 means that the respective DHS cluster does not have associated location information. Corresponding GEOLEV2 codes will be coded as 999.

Comparability - Standard DHS

GEOLEV2PROB is a contextual variable using source data from the IPUMS International database, rather than data from The DHS Program.

Universe