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. 2013 Aug 1;10:E129. doi: 10.5888/PCD10.130028

Figure 1.

Figure 1 consists of a map of counties in the continental United States. Counties whose probability of ranking in their assigned national quartile for health outcomes is less than .80 are indicated. Thirty-five percent of counties rank with low certainty in their national quartiles based on the empty models. The counties for which national quartile rank is less certain are concentrated in the Mountain and Central South regions of the United States.

Choropleth map of US county rank certainty in composite health outcomes (empty model).