Skip to main content

Table 3 Comparison of self-reported and clinically-examined numbers of teeth in subjects of a regular company medical checkup and J-MICC Study

From: Validity of self-reported number of teeth and oral health variables

 

Clinically-examined number of teeth

Self-reported number of teeth

ρ a

p-value

min. – max.

mean ± SD

min. – max.

mean ± SD

  

Subjects 1

      

Total (1315)

4 - 32

26.6 ± 4.2

2 - 32

25.2 ± 5.1

0.68

<0.01

Male (n)

      

 35 ~ 49 (204)

22 - 32

28.5 ± 1.8

10 - 32

27.1 ± 2.7

0.45

<0.01

 50 ~ 59 (231)

7 - 32

27.8 ± 2.5

8 - 32

26.6 ± 3.4

0.62

<0.01

 60 ~ 69 (249)

5 - 32

25.1 ± 5.6

5 - 32

23.0 ± 6.5

0.77

<0.01

 70 ~ 87 (125)

4 - 32

24.1 ± 5.7

3 - 32

21.8 ± 6.6

0.82

<0.01

 Total (809)

4 - 32

26.6 ± 4.5

3 - 32

24.9 ± 5.4

0.70

<0.01

Female (n)

      

 35 ~ 49 (168)

11 - 32

28.0 ± 2.2

14 - 32

27.3 ± 2.2

0.46

<0.01

 50 ~ 59 (161)

13 - 32

27.7 ± 2.2

10 - 32

26.8 ± 3.1

0.48

<0.01

 60 ~ 69 (133)

7 - 31

24.7 ± 4.3

5 - 32

23.7 ± 5.1

0.78

<0.01

 70 ~ 89 (44)

6 - 28

22.4 ± 6.3

2 - 28

21.5 ± 7.6

0.91

<0.01

 Total (506)

6 - 32

26.6 ± 3.9

2 - 32

25.7 ± 4.5

0.67

<0.01

Subjects 2

      

Total (186)

0 - 32

26.0 ± 4.8

0 - 32

24.3 ± 5.5

0.71

<0.01

Male (n)

      

 35 ~ 49 (20)

23 - 32

29.0 ± 2.1

20 - 32

27.4 ± 2.7

0.29

0.21

 50 ~ 59 (24)

19 - 32

26.7 ± 3.2

15 - 29

24.5 ± 4.0

0.67

<0.01

 60 ~ 69 (35)

4 - 29

23.8 ± 4.7

4 - 29

21.7 ± 5.0

0.64

<0.01

 70 ~ 87 (1)

30

30

28

28

-

-

 Total (80)

4 - 32

26.1 ± 4.3

4 - 32

24.0 ± 4.7

0.73

<0.01

Female (n)

      

 35 ~ 49 (32)

15 - 32

27.6 ± 2.9

15 - 32

27.2 ± 2.9

0.57

<0.01

 50 ~ 59 (47)

14 - 32

26.5 ± 3.0

10 - 30

24.6 ± 4.6

0.57

<0.01

 60 ~ 69 (25)

0 - 30

23.0 ± 8.9

0 - 29

20.8 ± 9.1

0.71

<0.01

 70 ~ 89 (2)

20 - 23

21.5 ± 2.1

21 - 21

21.0 ± 0

-

-

 Total (106)

0 - 32

25.9 ± 5.3

0 - 32

24.4 ± 6.0

0.70

<0.01

  1. Subjects 1: Subjects of a regular company medical checkup
  2. Subjects 2: Subjects of J-MCC Study
  3. min minimum, max maximum, SD standard deviation
  4. aSpearman’s rank correlation coefficient