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

Table 3 Correlations between Clinical Periodontal Constructs (n = 706)

	#PD ≥ 3	%PD ≥ 3	Mean PD ≥ 3	Sum PD ≥ 3	#AL ≥ 3	%AL ≥ 3	MeanAL ≥ 3	Sum AL ≥ 3
#PD ≥ 3	1	0.68	0.34	0.90	0.80	0.34	0.04	0.67
%PD ≥ 3		1	0.53	0.70	0.51	0.72	0.48	0.60
Mean PD ≥ 3			1	0.63	0.23	0.32	0.56	0.48
Sum PD ≥ 3				1	0.71	0.38	0.25	0.80
#AL ≥ 3					1	0.55	0.09	0.84
%AL ≥ 3						1	0.58	0.64
Mean AL ≥ 3							1	0.49
Sum AL ≥ 3								1

Correlations between selected clinical periodontal constructs, holding severity threshold constant and allowing the extent definition to vary.
# refers to number of sites/mouth beyond 3 mm severity threshold.
% refers to percent of sites/mouth beyond 3 mm severity threshold.
Mean refers to mean pocket depth among sites ≥ 3 mm severity threshold.
Sum refers to cumulative pocket depth among sites ≥ 3 mm severity threshold.

ISSN: 1471-2288