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Table 2 Relationships between tooth number, masticatory ability, and nutritional indices

From: Relationship between tooth loss, low masticatory ability, and nutritional indices in the elderly: a cross-sectional study

  

Number of teeth

 

Occlusal force, N

 

All five food groups were masticable

Serum albumin < 4.4 g/dl

BMI < 21.0 kg/m2

 

Number

Median (25, 75%)

p-value*

Median (25, 75%)

p-value*

%

p-value§

%

p-value§

%

p-value§

Males

≥20 teeth

889

26.0 (23.0, 28.0)

< 0.001

546.1 (358.3, 757.2)

< 0.001

94.5

< 0.001

18.1

< 0.001

19.5

< 0.001

10–19 teeth

303

15.0(12.0, 17.0)

 

248.1 (139.3, 359.0)

 

66.0

 

22.1

 

23.1

 

< 10 teeth

399

2.0(0,6.0)

 

115.0 (54.3, 199.5)

 

57.4

 

28.8

 

31.3

 

≥20 teeth

 Eichner class A

783

26.0 (24.0, 28.0)

< 0.001

564.0 (369.8, 770.2)

< 0.001

94.4

0.824

18.1

1.000

19.8

0.601

 Eichner class B/C

106

23.0 (22.0, 25.0)

 

442.9 (302.5, 618.8)

 

95.3

 

17.9

 

17.0

 

10 to 19 teeth

 Eichner class A

229

14.0 (12.0, 17.0)

0.027

255.4 (155.0, 359.9)

0.475

68.1

0.204

19.2

0.037

24.5

0.428

 Eichner class B/C

74

15.0 (13.0, 18.0)

 

224.8 (125.0, 357.3)

 

59.5

 

31.1

 

18.9

 

< 10 teeth

 Eichner class A

377

1.0 (0, 5.0)

< 0.001

115.5 (54.3, 200.1)

0.531

57.8

0.511

28.4

0.469

31.3

1.000

 Eichner class B/C

22

6.5 (2.0, 8.0)

 

85.5 (35.0, 201.8)

 

50.0

 

36.4

 

31.8

 

Females

≥20 teeth

840

26.0 (23.0, 27.0)

< 0.001

430.2 (267.5, 628.9)

< 0.001

94.4

< 0.001

15.8

0.301

27.7

0.183

10–19 teeth

316

16.0 (12.0, 18.0)

 

184.6 (110.7, 313.0)

 

68.0

 

18.4

 

23.1

 

< 10 teeth

387

2.0 (0, 7.0)

 

92.3 (42.2, 156.8)

 

53.5

 

19.1

 

28.9

 

≥20 teeth

 Eichner class A

716

26.0 (24.0, 28.0)

< 0.001

453.6 (285.7, 653.1)

< 0.001

95.4

0.006

15.9

1.000

27.0

0.233

 Eichner class B/C

124

23.0 (22.0, 24.0)

 

312.6 (190.7, 467.8)

 

88.7

 

15.3

 

32.3

 

10 to 19 teeth

 Eichner class A

250

15.0 (12.0, 18.0)

0.069

196.7 (122.8, 313.3)

0.026

68.8

0.656

19.2

0.582

24.4

0.328

 Eichner class B/C

66

16.0 (13.8, 18.0)

 

142.9 (79.2, 313.3)

 

65.2

 

15.2

 

18.2

 

< 10 teeth

 Eichner class A

379

2.0 (0, 7.0)

0.284

92.3 (42.3, 158.6)

0.457

53.6

1.000

19.5

0.362

29.6

0.111

 Eichner class B/C

8

6.0 (0.25, 8.0)

 

81.8 (10.2, 118.0)

 

50.0

 

0

 

0

 
  1. Numerals indicate the median (lower quartile, upper quartile), or proportion
  2. BMI Body mass index
  3. *For continuous variables, differences between two groups were tested using the Mann-Whitney test, and those between three groups were tested using the Kruskal-Wallis test
  4. §χ2 test used