Baseline characteristics of the intervention group for all and for men and women compared with the reference group after propensity score matching
| Variable | Intervention group | Reference group | Intervention group (men) | Reference group (men) | Intervention group (women) | Reference group (women) |
| n=5761 | n=34 566 | n=2087 | n=12 472 | n=3674 | n=21 824 | |
| Female, % | 63.8 | 63.1 | ||||
| Age, years (SD) | 45.6 (13.7) | 45.6 (13.9) | 46.2 (14.0) | 46.2 (14.2) | 45.2 (13.5) | 45.2 (13.7) |
| Married, %* | 64.9 | 65.2 | 68.6 | 67.9 | 62.7 | 63.7 |
| Born in Sweden, % | 84.7 | 84.4 | 84.0 | 83.2 | 85.1 | 85.1 |
| Sick leave before inclusion, % | 76.6 | 77.0 | 72.7 | 73.7 | 78.9 | 78.9 |
| Sick leave within the last year before inclusion, % | 59.0 | 58.6 | 52.3 | 52.1 | 62.8 | 62.3 |
| Charlson index (SD) | 0.2 (0.6) | 0.2 (0.6) | 0.2 (0.6) | 0.3 (0.7) | 0.2 (0.6) | 0.2 (0.6) |
| Education <10 years (low), %† | 26.2 | 26.0 | 26.3 | 25.9 | 25.8 | 26.4 |
| Education 10–12 years (medium), % | 43.7 | 44.1 | 44.7 | 44.0 | 43.6 | 43.6 |
| Education >12 years (high), % | 30.1 | 30.0 | 29.0 | 30.1 | 30.6 | 30.0 |
| Year of inclusion, % | ||||||
| 1988 | 16.0 | 16.0 | ||||
| 1989 | 30.0 | 30.0 | ||||
| 1990 | 26.4 | 26.4 | ||||
| 1991 | 14.0 | 14.0 | ||||
| 1992 | 11.1 | 11.1 | ||||
| 1993 | 2.5 | 2.5 |
*Missing data for marital status were included in the non-married group (intervention group 0.9%, reference group 0.03%).
†Missing data for education level were included in the low education group (intervention group 2.0%, reference group 2.0%).