Figure 2
From: Geographical variation of cerebrovascular disease in New York State: the correlation with income
Clustering of cerebrovascular disease with income adjustment. Shown are map of New York State by zip code boundaries; areas of high prevalence of cerebrovascular disease with income adjustment are indicated in red (local statistics over 3.85 and between 2.5 and 3.85), while areas of low prevalence with income adjustment are in blue (under -3.85 and between -2.5 and -3.85).