Outcome measurements
| Outcome | Aim | Hypothesis | Time of measurement | Data sources |
| Primary outcome | ||||
| Recorded all-cause sickness absence days | Objective data on work disability | Improvement occurred (ie, lower incidence rate and fewer absence days in the intervention group) | Up to 6 months from study entry—longer follow-ups are possible as these are register data | Employer’s and SII’s records |
| Secondary outcomes | ||||
| Recorded sickness absence days for mental disorders (F30-F49) (over 11 days) | Objective data on mental health-related work disability | Improvement occurred (ie, lower incidence rate and fewer absence days in the intervention group) | Up to 6 months from study entry—longer follow-ups are possible as these are register data | SII’s records |
| Recorded sickness absence days for musculoskeletal disorders (M00-M99) (over 11 days) | Objective data on musculoskeletal disorders-related work disability | Improvement occurred (ie, lower incidence rate and fewer absence days in the intervention group) | Up to 6 months from study entry—longer follow-ups are possible as these are register data | SII’s records |
| Recorded short-term sickness absence (1–11 days) | Data on short-term work disability | Improvement occurred (ie, lower incidence rate in the intervention group) | Up to 6 months from—longer follow-ups are possible as these are register data | Employer’s records |
| Psychotropic prescriptions | Diagnosed depression or other (mental) health difficulties | Improvement occurred (ie, lower incidence rate in the intervention group, less DDDs) | Up to 6 months from study entry—longer follow-ups are possible as these are register data | SII’s records |
DDD, defined daily doseSII, Social Insurance Institution of Finland.