Table 1 Measured data and their instruments and timing of data collection

Return to work

Full Return to work

Database company

X

X

Net return to work

Database company

X

X

First (partial or full) return to work

Database company

X

X

X

X

Time until 1^st recurrence

Database company

X

X

Number and days of recurrences of sick leave

Database company

X

X

Total days of sick leave during one year follow up

Database company

X

X

X

Treatment satisfaction

Treatment satisfaction of employee

Questionnaire

X

X

X

Treatment satisfaction of employer

Questionnaire

X

X

X

Treatment satisfaction of the OP

Questionnaire

X

Data related to secondary outcome

Cost effectiveness

Direct costs of treatment

   • Consultations OP and treatment OHS

Medical files OHS

X

X

X

X

   • Consultations of participating psychologist centre

Medical files centre

X

X

X

X

   • Consultation of general practitioner

Insurance company

X

X

X

X

   • Consultations psychiatrist/psychologist/alternative therapist

Insurance company

X

X

X

X

   • Medication

Insurance company

X

X

X

X

Indirect costs of lost productivity

   • Net lasting RTW and earnings

Database company

X

X

   • Replacement

Database company

X

X

Data related to prognostic measures

I) Personal characteristics

Gender, Age

Database company

X

Severity disorder: DASS/HADS (effect modifier)

Questionnaires

X

Work-relatedness of the disorder

Medical files OHS

X

Sick leave in year before inclusion (effect modifier)

Database company

X

II) Treatment

Treating occupational physician (OP)

Medical files OHS

X

Diagnosis made by the OP

Medical files OHS

X

Guideline adherence of the OP

Medical files OHS

X

X

X

X

III) Work characteristics

Type of function

Database company

X

Number of working hours

Database company

X

Police constabulary

Database company

X