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

Table 1 Distributions for *Selected Clinical Periodontal Constructs (n = 706).

Variable	25^th	Median	Mean	75^th	Std Dev
%AL ≥ 3	28	57	56	86	32
%AL ≥ 6	0	3	12	14	19
%AL ≥ 8	0	0	3	2	10
%PD ≥ 3	19	40	43	67	27
%PD ≥ 6	0	0	2	0	6
%PD ≥ 8	0	0	0.5	0	2
%BOP	3	13	33	50	46
#BOP	2	11	27	35	36

Abbreviations: AL: Attachment loss PD: Pockect depth BOP: bleeding on probing 25^th and 75^th denote percentiles. % refers to percent of sites per mouth. # refers to the number of sites per mouth. *Note, distributional patterns across increasing severity cut points were similar for all clinical periodontal constructs (data not shown).

ISSN: 1471-2288