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Table 5 Hierarchical identification of dogs with recordings of pocket probing depth (PPD) ≥4 mm

From: Screening for periodontal disease in research dogs - a methodology study

Tooth- pair examined All dogs (N = 98)
% PPD positive dogs found % PPD positive teeth found NPV* dogs
Man C 57.1 81.6 0.64
+Max C 82.1 94.2 0.81
+Max I2 85.7 95.5 0.84
+Man P4 89.3 96.4 0.88
+Max M2 92.9 97.3 0.91
+Max P4 95.5 97.8 0.93
+Max P3 96.4 98.7 0.95
+Max P2 98.2 99.6 0.98
+Max I1 100 100 1.00
  1. The proportion of the total number of PPD positive dogs, respectively, teeth that are identified by examination of the indicated tooth pairs (sensitivity). Also given for each combination of tooth-pairs is the proportion of test-negative dogs that are truly negative for the presence of PPD ≥4 mm.
  2. *Negative predictive value of screen test at dog level.