Skip to main content

Table 5 Recovered odds ratios (true value is 1.2) by types of geocoding and number of people in a sample. Estimates and power are based on 10,000 simulated samples.

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

Number of people in sample Geocoding Type Estimates Power (%)
   Mean Odds Ratio 95%CI  
316 Orthophoto 1.18 0.52–1.71 29.4
  E-911 1.17 0.53–1.65 31.1
  TIGER with 0 offset 1.18 0.50–1.82 19.0
474 Orthophoto 1.19 0.75–1.56 43.4
  E-911 1.19 0.75–1.52 41.8
  TIGER with 0 offset 1.19 0.69–1.66 24.3
632 Orthophoto 1.20 0.87–1.49 56.5
  E-911 1.20 0.87–1.45 51.8
  TIGER with 0 offset 1.20 0.78–1.56 30.2
790 Orthophoto 1.20 0.95–1.44 66.1
  E-911 1.20 0.94–1.42 59.4
  TIGER with 0 offset 1.20 0.86–1.51 35.5
948 Orthophoto 1.21 0.99–1.42 74.5
  E-911 1.21 0.98–1.39 66.4
  TIGER with 0 offset 1.20 0.90–1.48 40.1
1106 Orthophoto 1.21 1.04–1.40 81.1
  E-911 1.21 1.02–1.38 73.3
  TIGER with 0 offset 1.21 0.94–1.46 44.9
1264 Orthophoto 1.20 1.05–1.38 85.6
  E-911 1.21 1.04–1.36 78.3
  TIGER with 0 offset 1.20 0.95–1.43 49.7
1422 Orthophoto 1.21 1.07–1.37 89.7
  E-911 1.21 1.06–1.35 83.5
  TIGER with 0 offset 1.21 0.98–1.41 53.6
1581 Orthophoto 1.21 1.08–1.36 93.2
  E-911 1.21 1.08–1.35 87.0
  TIGER with 0 offset 1.21 1.00–1.40 57.0