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Table 2 Correlations between contaminant values for each of 1,581 rural addresses for seven different geocoding methods.

From: Geocoding accuracy and the recovery of relationships between environmental exposures and health

Geocoding Type   Orthophoto E-911 TIGER geocoding with offset in feet
     0 200 400 600 800
Orthophoto   1.00       
E-911   0.90 1.00      
TIGER geocoding with offsets in feet. 0 0.65 0.75 1.00     
  200 0.68 0.79 0.96 1.00    
  400 0.71 0.79 0.94 0.97 1.00   
  600 0.70 0.80 0.93 0.94 0.97 1.00  
  800 0.71 0.81 0.89 0.92 0.93 0.96 1.00