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Table 2 Correlations between Clinical Periodontal Constructs (n = 706)

From: Evaluating clinical periodontal measures as surrogates for bacterial exposure: The Oral Infections and Vascular Disease Epidemiology Study (INVEST)

  %PD ≥ 2 %PD ≥ 3 %PD ≥ 4 %PD ≥ 5 %PD ≥ 6 %PD ≥ 7 %PD ≥ 8
%PD ≥ 2 1 0.78 0.51 0.39 0.26 0.19 0.17
%PD ≥ 3   1 0.76 0.62 0.43 0.33 0.29
%PD ≥ 4    1 0.88 0.69 0.58 0.51
%PD ≥ 5     1 0.86 0.75 0.67
%PD ≥ 6      1 0.92 0.81
%PD ≥ 7       1 0.84
%PD ≥ 8        1
  1. Correlations between selected clinical periodontal constructs holding extent definition (percent of sites with pocket depth) constant and allowing the severity threshold to vary.