Table 3 Intergroup comparisons of participants stratified by Body Mass Index (n = 791)

Periodontal parameters

 Number of teeth

27.0 (4.2)

26.4 (3.7)

25.4 (5.8) ***

 < 0.001^†

 PPD (mm)

2.7 (0.5)

2.7 (0.5)

2.9 (0.7) ***

 < 0.001^†

 BOP sites / mouth

17.1 (20.8)

15.5 (17.3)

22.1 (25.3) ***

0.012^†

 PESA (mm²)

1392.7 (308.5)

1325.4 (267.2)

1429.8 (413.6) *

0.166^†

 PISA (mm²)

192.0 (284.1)

162.3 (212.6)

268.3 (350.5) ***

0.004^†

Health examination

 Age

48.7 (9.7)

49.1 (8.0)

51.0 (9.2) **

0.003^¶

 Weight (kg)

64.4 (8.0)

47.6 (5.4) ***

80.7 (12.0)***

 < 0.001^†

 BMI (kg/m²)

22.2 (1.7)

17.5 (0.9) ***

28.0 (3.1)***

 < 0.001^†

 Triglyceride (mg/dL)

109.8 (78.2)

69.3 (29.2) **

150.5 (98.9)***

 < 0.001^†

 LDL (mg/dL)

118.7 (28.0)

107.1 (37.3)

127.1 (30.1)***

 < 0.001^†

 HDL (mg/dL)

63.0 (15.8)

81.8 (21.8) ***

51.7 (11.1)***

 < 0.001^†

 FBG (mg/dL)

100.9 (8.3)

97.6 (10.1)

115.5 (24.6) ***

 < 0.001^†

 HbA1c (%)

5.37 (0.20)

5.59 (0.29)***

5.99 (0.92)***

 < 0.001^†

 % FEV₁

79.0 (6.9)

82.9 (8.3)*

80.6 (5.4) **

0.001^†

 CAVI

7.8 (0.9)

8.1 (0.8)

7.8 (0.9)

0.426^¶

Smoking (n, (%))

 < 0.001^§

 Never

200 (47.5)

10 (45.5)

117 (33.6)

 Former

120 (28.5)

2 (9.1)

104 (29.9)

 Current

101 (24.0)

10 (45.5)

127 (36.5)

Occlusal function (Total n = 588)

 n

316

12

260

 Bite force (N)

410.5 (243.9)

426.1 (307.1)

395.5 (240.5)

0.727^¶