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. 2021 Sep 6;18(17):9384. doi: 10.3390/ijerph18179384

Figure 1.

Figure 1

Census tract-level racial isolation index values (Panel A) and educational isolation index values (Panel B). Map projection: USA Contiguous Albers Equal Area Conic. RI ranges from 0 to 1. A value of 0 indicates that the neighborhood environment (defined as the index tract and tracts adjacent to the index tract) is entirely composed of non-NHB individuals. A value of 1 indicates that the neighborhood environment is entirely composed of NHB individuals. EI also ranges from 0 to 1. A value of 0 indicates that the neighborhood environment is entirely composed of individuals with a four-year college degree. A value of 1 indicates that the neighborhood environment is entirely composed of non-college educated individuals.