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Table 2 Distribution of participants with respect to proportion of sites with bleeding on probing (BoP) and the most severe periodontal probing depth (PPD) (N = 454)

From: Periodontal conditions in a 65-year-old population and prevalence of periodontitis according to three different bone level thresholds

  n (%)
% of sites with BoP
 < 10% 341 (75.1)
10–30% 98 (21.6)
 > 30% 15 (3.3)
Maximum PPD
 ≤ 3 mm 123 (27.1)
4–5 mm 210 (46.3)
6–8 mm 101 (22.2)
9–10 mm 14 (3.1)
 ≥ 11 mm 6 (3.1)