| Model 1: Crude |  | Model 2: Age-adjusteda |  | Model 3: Age- and SES-adjusteda |  | Model 4: Full factoriala,b | |
---|---|---|---|---|---|---|---|---|
Independent variable | Â | OR (95% CI) | Â | OR (95% CI) | Â | OR (95% CI) | Â | OR (95% CI) |
Age (years) | Â | Â | Â | Â | Â | Â | Â | Â |
 20-24 |  | 1 |  |  |  | 1 |  | 1 |
 25-34 |  | 1.39 (1.00-1.94) |  |  |  | 1.60 (1.14-2.24) |  | 1.59 (1.13-2.24) |
 35-44 |  | 1.95 (1.43-2.67) |  |  |  | 2.33 (1.67-3.24) |  | 2.28 (1.63-3.19) |
 45-54 |  | 2.88 (2.12-3.92) |  |  |  | 3.41 (2.46-4.73) |  | 3.28 (2.35-4.56) |
 55-64 |  | 5.95 (4.41-8.02) |  |  |  | 7.08 (5.14-9.75) |  | 6.54 (4.72-9.05) |
SES | Â | Â | Â | Â | Â | Â | Â | Â |
 Professional work level |  | 1 |  | 1 |  |  |  | 1 |
 Intermediate non-manual work level |  | 1.43 (1.13-1.81) |  | 1.43 (1.13-1.82) |  |  |  | 1.39 (1.09-1.76) |
 Assistant non-manual work level |  | 1.30 (0.97-1.73) |  | 1.34 (1.00-1.79) |  |  |  | 1.25 (0.93-1.67) |
 Self-employed non-professional work level |  | 1.75 (1.35-2.26) |  | 1.59 (1.23-2.07) |  |  |  | 1.51 (1.16-1.96) |
 Skilled manual work level |  | 2.11 (1.70-2.64) |  | 2.38 (1.90-2.99) |  |  |  | 2.17 (1.73-2.74) |
 Unskilled/semiskilled manual work level |  | 1.93 (1.54-2.41) |  | 2.19 (1.75-2.75) |  |  |  | 1.98 (1.57-2.50) |
 Students |  | 0.76 (0.51-1.13) |  | 1.84 (1.21-2.82) |  |  |  | 1.66 (1.05-2.61) |
Type of living area | Â | Â | Â | Â | Â | Â | Â | Â |
 Urban |  | 1 |  | 1 |  | 1 |  | 1 |
 Semi-urban |  | 1.31 (1.13-1.52) |  | 1.29 (1.11-1.50) |  | 1.19 (1.02-1.39) |  | 1.18 (1.01-1.38) |
 Sparsely populated |  | 1.54 (1.32-1.79) |  | 1.41 (1.20-1.65) |  | 1.23 (1.05-1.44) |  | 1.22 (1.03-1.43) |
Country of birth | Â | Â | Â | Â | Â | Â | Â | Â |
 Sweden |  | 1 |  | 1 |  | 1 |  | 1 |
 Elsewhere |  | 0.97 (0.80-1.17) |  | 1.01 (0.83-1.23) |  | 0.95 (0.78-1.16) |  | 0.96 (0.79-1.18) |
Main income source | Â | Â | Â | Â | Â | Â | Â | Â |
 Work |  | 1 |  | 1 |  | 1 |  | 1 |
 Unemployment benefits |  | 1.33 (1.03-1.71) |  | 1.34 (1.03-1.73) |  | 1.23 (0.94-1.60) |  | 1.22 (0.94-1.59) |
 Sickness benefits/disability pension | 2.39 (2.00-2.85) |  | 1.55 (1.29-1.87) |  | 1.36 (1.13-1.65) |  | 1.36 (1.12-1.65) | |
 Other |  | 0.74 (0.57-0.98) |  | 1.08 (0.81-1.43) |  | 1.07 (0.78-1.45) |  | 1.09 (0.80-1.48) |