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Table 6 Number (n) and percentage receiving disability benefit, association (odds ratio) with country of birth among attendees and all invited. The Oslo Health Study 2000–2001.

From: The Oslo Health Study: The impact of self-selection in a large, population-based survey

Country of birth *

Attendees

All invited

 

n

%

OR

(95% CI)

n

%

OR

(95% CI)

Men

        

Age 40+45

        

   Norway

58

2.7

Ref.

 

278

4.9

Ref.

 

   Western

2

1.4

0.52

(0.13–2.12)

6

1.3

0.26

(0.12–0.60)

   Non-western

32

6.0

2.33

(1.50–3.62)

101

7.1

1.48

(1.17–1.88)

Age 59–60

        

   Norway

230

12.8

Ref.

 

601

18.0

Ref.

 

   Western

12

10.9

0.83

(0.45–1.54)

25

11.8

0.61

(0.40–0.94)

   Non-western

57

36.8

3.96

(2.77–5.64)

141

39.5

2.97

(2.36–3.74)

Women

        

Age 40+45

        

   Norway

123

4.4

Ref.

 

340

6.2

Ref.

 

   Western

6

2.9

0.65

(0.28–1.49)

14

3.4

0.53

(0.31–0..91)

   Non-western

27

5.6

1.31

(0.85–2.01)

73

7.2

1.18

(0.91–1.53)

Age 59–60

        

   Norway

431

21.3

Ref.

 

901

25.7

Ref.

 

   Western

12

9.2

0.38

(0.21–0.69)

30

13.5

0.45

(0.31–0.67)

   Non-western

25

22.7

1.09

(0.69–1.72)

70

23.9

0.91

(0.69–1.20)

  1. * Adjusting for marital status, residential region and education gave similar results. Testing of interaction between attendance and country of birth in a logistic regression model including all men and women aged 40, 45, 59 and 60 years, and age and sex as covariates in addition to attendance and country of birth, gave p = 0.003.