| Variable | Description | Unit cost (€) | Total usage (number of visits) | Mean (SD) costs (€) | ||
| Intervention (n = 134) | Control (n = 138) | Intervention (n = 134) | Control (n = 138) | |||
| UH_days | Number of in-patient days at university hospital | 636.1 | 29 | 24 | 138 (695) | 111 (420) |
| OHC_doc | Doctor visits in occupational health care (OHC) | 41.2 | 419 | 495 | 129 (128) | 148 (156) |
| UH_OC | Visits at outpatient clinic in a university hospital | 202.8 | 69 | 47 | 104 (185) | 69 (126) |
| CH_days | Number of in-patient days at central hospital | 451.6 | 26 | 35 | 88 (438) | 115 (578) |
| CH_OC | Visits at outpatient clinic in a central hospital | 183.2 | 49 | 30 | 67 (363) | 40 (220) |
| Oth_phys | Physiotherapist visits outside OHC | 30.0 | 272 | 236 | 61 (75) | 51 (92) |
| OHC_nur | Nurse visits in OHC | 22.7 | 296 | 235 | 50 (93) | 39 (60) |
| OHC_phys | Physiotherapist visits in OHC | 49.7 | 134 | 123 | 50 (194) | 44 (121) |
| Rehab_days | Number of in-patient days at rehabilitation | 112.7 | 55 | 69 | 46 (274) | 56 (323) |
| RH_OC | Visits at outpatient clinic in a regional hospital | 179.8 | 29 | 53 | 39 (214) | 69 (145) |
| PH_days | Number of in-patient days at private hospital | 510.2 | 9 | 1 | 34 (355) | 4 (43) |
| PH_GP | General practitioner visits in public healthcare | 65.6 | 67 | 76 | 33 (80) | 36 (66) |
| Oth_Cons | Visits at other private consultant | 79.6 | 44 | 53 | 26 (64) | 31 (101) |
| Orthop | Visits at private orthopaedic consultant | 121.0 | 26 | 32 | 23 (82) | 28 (117) |
| OHC_other | Visits at other healthcare professionals in OHC | 33.9 | 60 | 46 | 15 (70) | 11 (44) |
| RH_days | Number of in-patient days at regional hospital | 400.2 | 5 | 24 | 15 (91) | 70 (407) |
| PH_nur | Nurse visits in public healthcare | 30.5 | 36 | 46 | 8 (25) | 10 (55) |
| Priv_GP | General practitioner visits in private healthcare | 57.9 | 18 | 36 | 8 (40) | 15 (51) |
| CHCW_days | Number of in-patient days at community health centre | 148.0 | 6 | 0 | 7 (77) | 0 (0) |
| MHC | Visits at mental health clinic | 108.1 | 8 | 10 | 6 (47) | 8 (28) |
| Oth_OC | Visits at other hospital outpatient clinics | 191.2 | 4 | 3 | 6 (211) | 4 (212) |
| Tel_adv | Telephone health advice | 17.4 | 38 | 83 | 5 (20) | 10 (26) |
| UH_n | Number of visits at university hospital | 30.9 | 19 | 20 | 4 (20) | 4 (17) |
| CH_n | Number of visits at central hospital | 30.9 | 18 | 17 | 4 (22) | 4 (14) |
| Psych | Visits at private psychiatrist or psychologist | 88.1 | 6 | 75 | 4 (39) | 48 (453) |
| RH_n | Number of visits at regional hospital | 30.9 | 9 | 34 | 2 (14) | 8 (46) |
| Rehab_n | Number of visits at in-house rehabilitation centre | 13.2 | 9 | 15 | 1 (4) | 1 (12) |
| OthH_n | Number of visits at other hospital | 6.0 | 7 | 2 | 0 (3) | 0 (1) |
| PH_n | Number of visits at private hospital | 13.2 | 1 | 3 | 0 (1) | 0 (2) |
| OthH_days | Number of in-patient days at other hospitals | 510.2 | 0 | 4 | 0 (0) | 15 (137) |
| CHCW_n | Number of visits at community health centre ward | 6.0 | 0 | 1 | 0 (0) | 0 (1) |
| Mean direct total cost | 974 | 1049 | ||||
| Total costs | 130469 | 144741 | ||||
The source for the unit costs was Hujanen5 for all other items except Kansaneläkelaitos6 for “Rehab_days”. The unit costs are expressed in euros at the 2004 price level.