Get OPTN/UNOS Region Boundaries

Returns OPTN/UNOS region boundaries from the package's internal state-level UNOS region spatial dataset.

Usage

get_hrsa_optn_regions()

Value

An sf object with one feature per OPTN/UNOS region.

Details

This function uses the package's internal UNOS_regions_sf object, which contains state-level geometries assigned to OPTN/UNOS regions. The function dissolves those state-level geometries into one feature per OPTN/UNOS region.

Unlike the HRSA ArcGIS REGION_CD and REGION_NM fields, which appear to represent 10 HRSA/HHS administrative regions, this function returns the 11 OPTN/UNOS regions.

The returned object preserves the coordinate reference system of UNOS_regions_sf, currently NAD83 / Conus Albers.

See also

sf::st_make_valid(), dplyr::summarise(), get_hrsa_transplant_centers()

Examples

if (FALSE) {
regions <- get_hrsa_optn_regions()

regions
sf::st_crs(regions)
plot(regions["Region"])
}