Baseline characteristics, prognostic variables and baseline values of outcome measures
| WI (n=73) | UC (n=72) | |
| Baseline characteristics | ||
| Age in years | 48.6 (7.7) | 49.2 (8.6) |
| Gender (% male) | 76.7 | 80.6 |
| Education | ||
| High, n (%) | 21 (28.8) | 20 (28.6) |
| Average, n (%) | 29 (39.7) | 29 (41.4) |
| Low, n (%) | 23 (31.5) | 21 (30.0) |
| Sick leave characteristics | ||
| Sick leave in the past year | ||
| <10 days, n (%) | 31 (42.5) | 37 (51.4) |
| 11–30 days, n (%) | 23 (31.5) | 21 (29.2) |
| > 31 days, n (%) | 19 (26.0) | 14 (19.4) |
| RTW expectations | ||
| Within a month, n (%) | 18 (25.4) | 20 (27.8) |
| More than a month, n (%) | 53 (74.6) | 52 (72.2) |
| Burnout | ||
| Emotional exhaustion (0–6)* | 2.9 (1.7) | 2.8 (1.6) |
| Depersonalisation (0–6)* | 2.0 (1.3) | 2.0 (1.2) |
| Personal accomplishment (0–6)* | 3.7 (1.0) | 3.8 (1.0) |
| Stress-related symptoms | ||
| Distress (0–32)* | 20.7 (7.7) | 19.8 (7.7) |
| Depression (0–12)* | 3.3 (3.7) | 3.5 (3.6) |
| Anxiety (0–24)* | 6.5 (6.0) | 5.2 (5.1) |
| Somatisation (0–32)* | 12.8 (6.8) | 12.9 (6.4) |
| Work characteristics | ||
| Job demands (12–60) | 32.7 (5.37) | 32.0 (4.76) |
| Decision latitude (24–120) | 71.0 (10.7) | 69.3 (10.9) |
Unless indicated otherwise, the mean and SD are presented. UC, usual care; WI, workplace intervention.
↵* A higher score means a higher level of emotional exhaustion, depersonalisation, personal accomplishment, distress, depression, anxiety and somatisation.