Table 1.
Baseline characteristics of intervention group and control group: Mean (standard deviation)/frequency (%).
| Intervention N = 137 | Control N = 131 | Test statistic (df) | p | |
|---|---|---|---|---|
| Age (years) | 41.1 (10.7) | 40.6 (11.5) | t = 0.43 (266) | 0.67 |
| Gender, female | 80 (58%) | 79 (60%) | χ2 = 0.04 (1) | 0.85 |
| Education | χ2 = 0.53 (1) | 0.47 | ||
| Up to 10 years | 64 (47%) | 68 (52%) | ||
| >10 years | 73 (53%) | 63 (48%) | ||
| Vocational training completed (yes) | 67 (49%) | 61 (47%) | χ2 = 0.07 (1) | 0.79 |
| Disability status (yes) | 33 (24%) | 29 (22%) | χ2 = 0.03 (1) | 0.87 |
| Duration of current employment (years) | 8.9 (9.0) | 9.5 (9.9) | t = −0.55 (265) | 0.59 |
| Duration of sick leave (days) | 31.1 (60.4) | 45.0 (75.8) | t = −1.65 (263) | 0.10 |
| Main diagnosis | χ2 = 4.33 (3) | 0.23 | ||
| F2 | 34 (25%) | 27 (21%) | ||
| F3 | 89 (65%) | 85 (65%) | ||
| F4 | 7 (5%) | 10 (8%) | ||
| F6 | 0 (0%) | 3 (2%) | ||
| Missing | 7 (5%) | 6 (5%) | ||
| Duration of illness (years) | 10.3 (10.7) | 9.5 (11.1) | t = 0.57 (258) | 0.57 |
| Number of prev. hospitalizations | 2.0 (3.0) | 1.9 (2.6) | t = 0.10 (254) | 0.92 |
| Illness severity (CGI) | 4.7 (1.0) | 4.4 (0.9) | t = 1.68 (238) | 0.09 |
| Social functioning (GAF) | 44.8 (14.5) | 47.8 (13.3) | t = −1.70 (238) | 0.09 |