|  | Model 1: Crudea |  | 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 |  | 1.03 (0.73-1.46) |  |  |  | 1.22 (0.86-1.74) |  | 1.19 (0.83-1.70) |
 35-44 |  | 1.42 (1.03-1.97) |  |  |  | 1.73 (1.23-2.43) |  | 1.58 (1.12-2.23) |
 45-54 |  | 2.47 (1.81-3.37) |  |  |  | 3.01 (2.15-4.20) |  | 2.63 (1.87-3.70) |
 55-64 |  | 3.05 (2.24-4.15) |  |  |  | 3.64 (2.61-5.08) |  | 2.99 (2.13-4.20) |
SES | Â | Â | Â | Â | Â | Â | Â | Â |
 Professional work level |  | 1 |  | 1 |  |  |  | 1 |
 Intermediate non-manual work level |  | 1.31 (1.00-1.72) |  | 1.30 (0.99-1.71) |  |  |  | 1.26 (0.96-1.65) |
 Assistant non-manual work level |  | 1.54 (1.17-2.04) |  | 1.48 (1.12-1.95) |  |  |  | 1.35 (1.02-1.79) |
 Self-employed non-professional work level |  | 1.17 (0.78-1.76) |  | 1.06 (0.71-1.60) |  |  |  | 1.04 (0.69-1.57) |
 Skilled manual work level |  | 1.72 (1.30-2.28) |  | 1.76 (1.33-2.34) |  |  |  | 1.58 (1.19-2.12) |
 Unskilled/semiskilled manual work level |  | 2.12 (1.63-2.74) |  | 2.20 (1.70-2.86) |  |  |  | 1.88 (1.43-2.45) |
 Students |  | 1.01 (0.69-1.46) |  | 1.82 (1.22-2.70) |  |  |  | 1.71 (1.12-2.61) |
Type of living area | Â | Â | Â | Â | Â | Â | Â | Â |
 Urban |  | 1 |  | 1 |  | 1 |  | 1 |
 Semi-urban |  | 1.23 (1.05-1.45) |  | 1.18 (1.00-1.40) |  | 1.11 (0.94-1.31) |  | 1.09 (0.92-1.29) |
 Sparsely populated |  | 1.46 (1.24-1.73) |  | 1.35 (1.14-1.59) |  | 1.21 (1.01-1.43) |  | 1.18 (0.99-1.40) |
Country of birth | Â | Â | Â | Â | Â | Â | Â | Â |
 Sweden |  | 1 |  | 1 |  | 1 |  | 1 |
 Elsewhere |  | 1.08 (0.89-1.32) |  | 1.08 (0.89-1.32) |  | 1.01 (0.83-1.24) |  | 1.00 (0.82-1.23) |
Main income source | Â | Â | Â | Â | Â | Â | Â | Â |
 Work |  | 1 |  | 1 |  | 1 |  | 1 |
 Unemployment benefits |  | 1.72 (1.28-2.32) |  | 1.74 (1.28-2.35) |  | 1.59 (1.17-2.16) |  | 1.58 (1.16-2.14) |
 Sickness benefits/disability pension | 2.37 (2.02-2.79) |  | 1.92 (1.63-2.27) |  | 1.73 (1.46-2.06) |  | 1.72 (1.45-2.05) | |
 Other |  | 0.74 (0.57-0.96) |  | 1.01 (0.77-1.33) |  | 0.95 (0.71-1.27) |  | 0.95 (0.71-1.28) |