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Table 1 Baseline characteristics of the discovery sample

From: Different contribution of BRINP3 gene in chronic periodontitis and peri-implantitis: a cross-sectional study

  Healthy (n = 93) Diseased (n = 52) Chronic periodontitis only (n = 36) Peri-implantitis only (n = 34) p-value
  n (%) n (%) n (%) n (%) Healthy Healthy Healthy Diseased Diseased Chronic periodontitis only
X X X X X X
Diseased Chronic periodontitis only Peri-implantitis only Peri-implantitis only Chronic periodontitis only Peri-implantitis only
Ethnic group           
Whites 83 (89.2) 48 (92.3) 29 (80.5) 29 (85.3) 0.54 0.19 0.54 0.29 0.10 0.59
Non-Whites 10 (10.8) 4 (7.7) 7 (19.5) 5 (14.7)
Age (years) 51.2 ± 13.3 59.2 ± 10.3 58.5 ± 11.4 55.1 ± 11.8 0.001 0.01 0.68 0.71 1.0 1.0
Sex           
Female 61 (65.6) 38 (73.0) 25 (69.5) 24 (70.6) 0.35 0.67 0.59 0.80 0.71 0.91
Male 32 (34.4) 14 (27.0) 11 (30.5) 10 (29.4)
Smoking           
Non-smoking 86 (92.5) 45 (86.5) 30 (83.3) 33 (97.0) 0.24 0.12 0.34 0.10 0.67 0.05
Smoking 7 (7.5) 7 (13.5) 6 (16.7) 1 (3.0)
Alcohol Consumption           
No 49 (52.7) 29 (55.7) 21 (58.3) 24 (70.6) 0.72 0.56 0.07 0.16 0.81 0.28
Yes 44 (47.3) 23 (44.3) 15 (41.7) 10 (29.4)
Peri-implant Status           
Bleeding on probing 0.12 ± 0.33 0.62 ± 0.48 0.19 ± 0.4 0.55 ± 0.5 0.0001 1.0 0.0001 1.0 0.07 0.002
Spontaneous bleeding 0 0.11 ± 0.32 0 0.14 ± 0.35 0.0001 1.0 0.004 1.0 0.07 0.02
Probing pocket depth (mm) 1.55 ± 0.74 2.4 ± 1.38 1.58 ± 0.66 2.45 ± 1.03 0.04 1.0 0.08 1.0 0.04 0.05
Plaque index 0.03 ± 0.18 0.31 ± 0.46 0.22 ± 0.42 0.17 ± 0.38 0.0001 0.04 0.2 0.4 1.0 1.0
Peri-implant phenotype           
Thin 35 (37.6) 29 (55.7) 18 (50) 13 0.03 0.2 0.95 0.11 0.59 0.32
Thick 58 (62.4) 23 (44.2) 18 (50) 21
Mobility 0 3 0 2 0.1 1.0 0.3 1.0 0.4 0.6
Platform Type           
External hexagon 44 (47.3) 29 (55.8) 20 (55.5) 21 (61.8) 0.9 1.0 1.0 1.0 1.0 1.0
Internal hexagon 8 (8.6) 6 (11.5) 2 (5.5) 2 (5.9)
Morse Cone 35 (37.7) 17 (32.7) 13 (36.2) 10 (29.4)
Others 6 (6.4)   1 (2.8) 1 (2.9)
Implant region           
Superior 122 (54.5) 126 (50.2) 47 (30.0) 64 (53.3) 0.3 0.0001 0.8 0.5 0.0001 0.0001
Inferior 102 (45.5) 127 (49.8) 110 (70.0) 56 (46.7)
Osseointegration period (months) 35.53 ± 34.01 37.8 ± 47.1 29.97 ± 21.92 31.7 ± 23.7 1.0 1.0 1.0 1.0 1.0 1.0
  1. Diseased = chronic periodontitis + peri-implantitis.