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Table 1 Demographic, dental and periodontal characteristics for the study population (n = 156)

From: A rapid, non-invasive tool for periodontitis screening in a medical care setting

  No or mild periodontitisd Moderate periodontitisd Severe periodontitisd Total periodontitis (moderate + severe)d
Demographics
 N (%) 51 (32.7) 54 (34.6) 51 (32.7) 105 (67.3)
 Age (years) 33.2 ± 13.9 48.1 ± 15.7 54.1 ± 11.8b*** 51.0 ± 14.2a***
 Sex
  Male 22 (43.1) 27 (50.0) 37 (72.5)b** 64 (61.0)a*
  Female 29 (56.9) 27 (50.0) 14 (27.5) 41 (39.0)
 Smoking
  Yes 8 (15.7) 9 (16.7) 20 (39.2)b** 29 (27.6)c
  No 42 (82.4) 41 (75.9) 30 (58.8) 71 (67.6)
  Missing 1 (2.0) 4 (7.4) 1 (2.0) 5 (4.8)
Clinical measurements
 Number teeth 28.1 ± 3.81 24.3 ± 4.46 24.1 ± 4.64b** 24.2 ± 4.53a***
 Bleeding on probing (%) 24.5 ± 15.7 29.2 ± 17.9 46.6 ± 26.2b*** 37.6 ± 23.9a***
 Probing pocket depth (mm) 2.12 ± 0.26 2.31 ± 0.34 3.18 ± 0.88b*** 2.73 ± 0.79a***
 Clinical attachment loss (mm) 1.36 ± 0.45 2.08 ± 0.63 3.90 ± 1.37b*** 2.96 ± 1.39a***
  1. Data are presented as either mean ± SD or n (%)
  2. Mann-Whitney U tests (for continuous data) and chi-square tests (for categorical data) were used to assess differences between groups:
  3. asignificantly different from no/mild periodontitis
  4. bsignificantly different from patients without severe periodontitis
  5. cAlthough not reaching statistical significance, the variable did suffice the p < 0.20 cut-off level to be included in the regression analysis
  6. ddefinitions for periodontitis according to Page and Eke (2007) [20]
  7. *p < 0.05, **p < 0.01, ***p < 0.001