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Table 2 Identification of data source (InfoUSA or Dun and Bradstreet) with better count accuracy statistics for food stores and restaurants

From: A step-by-step approach to improve data quality when using commercial business lists to characterize retail food environments

 Study All outlets All food stores All restaurants
Sensitivity PPV Sensitivity PPV Sensitivity PPV
D’Angelo [22] estimate (SE) N/A N/A InfoUSA: 0.84 (0.01) InfoUSA: 0.87 (0.01) N/A N/A
Dun and Bradstreet: 0.64 (0.02) Dun and Bradstreet: 0.91 (0.01)
Fleischhacker [8] estimate [CI] InfoUSA: 0.89 [0.86, 0.92] InfoUSA: 0.67 [0.63, 0.70] N/A N/A InfoUSA: 0.91 [0.88, 0.94] InfoUSA: 0.71 [0.66, 0.75]
Dun and Bradstreet: 0.41 [0.37, 0.45] Dun and Bradstreet: 0.31 [0.28, 0.34] Dun and Bradstreet: 0.38 [0.32, 0.44] Dun and Bradstreet: 0.29 [0.25, 0.34]
Liese [15] estimate [CI] InfoUSA: 0.65 [0.63, 0.67] InfoUSA: 0.86 [0.85, 0.88] InfoUSA: 0.61 [0.58, 0.64] InfoUSA: 0.82 [0.79, 0.85] InfoUSA: 0.67 [0.65, 0.70] InfoUSA: 0.90 [0.88, 0.92]
Dun and Bradstreet: 0.55 [0.53, 0.57] Dun and Bradstreet: 0.78 [0.76, 0.80] Dun and Bradstreet: 0.63 [0.60, 0.66] Dun and Bradstreet: 0.76 [0.73, 0.79] Dun and Bradstreet: 0.50 [0.47, 0.53] Dun and Bradstreet: 0.79 [0.77, 0.82]
Powell [17] estimate (SE) N/A N/A InfoUSA: 0.64 (0.02) InfoUSA: 0.61 (0.02) InfoUSA: 0.65 (0.01) InfoUSA: 0.79 (0.01)
Dun and Bradstreet: 0.52 (0.02) Dun and Bradstreet: 0.45 (0.02) Dun and Bradstreet: 0.55 (0.01) Dun and Bradstreet: 0.66 (0.01)
  1. Italic indicates statistically higher validity statistic as compared to the other data source
  2. Standard errors and confidence intervals reported as originally reported in the cited papers