Description
SDPCOHORT is an IPUMS-generated variable that groups service delivery point samples that can be linked using FACILITYID over time.
PMA's sampling design for surveys conducted between 2013 and 2018 collect data from households and service delivery points from the same enumeration area (EAID, the primary sampling unit) for four rounds in a row before randomly selecting a new set of EAs. Often, the same facilities were sampled in multiple rounds. The variable FACILITYID identifies the facility within rounds that were conducted in the same set of EAs. Beginning with the redesign in 2018, PMA refocused on longitudinal data collection with purposeful repeated interviews of the same facilities over time.
IPUMS has linked the SDP data using FACILITYID for rounds where the survey was conducted in the same set of EAs. Users should note that for a small number of cases (less than 4% of total cases), linked records of facilities had different EAID codes over time.
