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Table 1 Characteristics of the study population – women. The osteoporosis sub-sample of the Oslo Health Study 2000–2001.

From: The Oslo Health Study: Is bone mineral density higher in affluent areas?

 

40/45 years

60 years

75 years

Total age-adjusted (CI)b

Women

    

Number of subjects

    

   West

126

93

80

299

   East

179

91

133

403

Married (%)

    

   West

55*

63*

48

56 (50, 61)**

   East

41

41

45

42 (38, 47)

Unemployed (%)

    

   West

13

23

 

17 (11, 22)

   East

16

31

 

22 (17, 26)

Disability pension (%)

    

   West

4

20*

 

9.7 (5.1, 14.3)*

   East

8

34

 

17.1 (13.0, 21.3)

Years of educationa

    

   West

15.7 (3.2)*

13.3 (3.4)*

12.1 (3.1)*

13.9 (13.6, 14.3)***

   East

13.5 (3.3)

11.0 (3.1)

9.3 (2.4)

11.6 (11.3, 11.9)

Height (cm)a

    

   West

168 (5.5)

166 (5.6)

161 (5.7)*

165.6 (164.9, 166.3)**

   East

167 (5.7)

165 (5.8)

159 (5.9)

164.3 (163.7, 164.8)

Weight (kg)a

    

   West

66 (10.1)*

67 (9.2)

67 (14.3)

66.4 (65.1, 67.8)**

   East

70 (12.7)

70 (12.5)

66 (11.3)

68.8 (67.7, 70.0)

Body mass index (kg/m2)a

    

   West

23.3 (3.2)*

24.6 (3.8)

25.7 (4.8)

24.4 (23.9, 24.9)***

   East

25.3 (4.6)

25.8 (4.5)

26.2 (4.4)

25.7 (25.3, 26.1)

Physical inactive (%)

    

   West

15**

45

61

37 (31, 42)*

   East

32

46

67

46 (41, 51)

Current smoker (%)

    

   West

26***

18

11

19 (14, 24)***

   East

49

27

21

35 (31, 39)

Current use of HRT (%)

    

   West

6

47

13

21 (16, 25)*

   East

7

40

8

14 (11, 18)

  1. Oslo West is more privileged than Oslo East
  2. *** p < 0.001, ** p < 0.005, *p < 0.05. Difference between West and East.
  3. a Figures are means (SD)
  4. b CI – 95% confidence interval