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Table 3 Mean number of teeth and standard deviation (SD) according to marital status, social group and education among women aged 38 and 50 years, in the studies from 1968/69 to 2004/05

From: Trends in tooth loss in relation to socio-economic status among Swedish women, aged 38 and 50 years: repeated cross-sectional surveys 1968-2004

  

1968/69

1980/81

1992/93

2004/05

  

Mean

(SD)

Mean

(SD)

Mean

(SD)

Mean

(SD)

Age 38

Living together

22.5

(6.8)

24.9

(6.2)

28.4

(2.1)

28.6

(2.7)

 

Single living

20.6

(7.8)

25.0

(5.4)

27.6

(2.2)

29.1

(2.3)

 

High social group

25.8a

(3.2)

27.4b

(2.0)

27.1

(2.6)

28.8

(2.2)

Medium social group

22.7a

(6.5)

25.5

(5.5)

28.2

(2.0)

29.1

(2.7)

Low social group

20.5a

(8.1)

24.0b

(6.4)

28.1

(2.4)

28.8

(2.5)

 

High education

27.4

(2.4)

28.0c

(1.6)

28.2

(2.1)

29.2

(2.1)

 

Medium education

24.7b

(4.4)

27.1b

(2.3)

28.1

(2.5)

28.7

(2.9)

 

Low education

21.8b

(7.3)

23.9a

(6.6)

27.8

(2.2)

27.3

(4.2)

Age 50

Living together

15.1*

(9.4)

21.8*

(6.4)

23.7

(6.3)

27.7*

(2.4)

 

Single living

12.7*

(9.9)

18.0*

(8.7)

24.1

(6.2)

27.0*

(3.8)

 

High social group

21.4a

(6.5)

23.7b

(4.9)

27.6b

(0.5)

27.9b

(2.2)

Medium social group

16.4a

(8.8)

21.3c

(7.0)

25.0c

(5.1)

27.7c

(2.5)

Low social group

11.0a

(9.4)

19.6bc

(7.8)

21.1bc

(7.6)

26.1bc

(4.6)

 

High education

21.6

(10.0)

25.3

(4.3)

28.1c

(1.5)

28.2a

(2.2)

 

Medium education

20.5b

(8.3)

22.6

(6.1)

25.9b

(2.5)

26.9a

(3.0)

 

Low education

13.6b

(9.4)

20.6

(7.4)

22.8a

(6.9)

25.1a

(5.3)

  1. Marital status and number of teeth: * = Significance (p < 0.05) between the marital status groups.
  2. Social group and number of teeth:
  3. a = significance (p < 0.05) between all social groups.
  4. b = significance (p < 0.05) between high and low social groups.
  5. c = significance (p < 0.05) between medium and low social groups.
  6. Educational level and number of teeth:
  7. a = significance (p < 0.05) between all education groups.
  8. b = significance (p < 0.05) between low and medium education groups.
  9. c = significance (p < 0.05) between low and high education groups.
  10. The analyses of variance method was applied including a post-hoc analysis (LSD).