Figure 3.

Geographic distribution of female breast cancer. The fill color in each ZIP code represents the SMR, with green indicating relatively low SMR and purple represent relatively high SMR. White ZIP codes indicate SMR near 1 (observed and expected equivalent). Orange and yellow hatching of ZIP codes indicate significant clusters and outliers according to the local Moran test. The black outlines describe ZIP code boundaries. Labels identify the centering ZIP codes for each significant cluster or outlier.