: Researchers use this field to identify the geographic location of survey participants during the initial "Baseline" phase of a study cohort. Context within HOS Data
: It is a character field (usually 22 characters in length) found in research files like the Baseline Research Identifiable File (RIF) or Limited Data Set (LDS) . B18zip
The HOS program is used by the Centers for Medicare & Medicaid Services (CMS) to gather data on the quality of care provided by Medicare Advantage Organizations (MAOs). : Researchers use this field to identify the