Effectiveness of guideline-based care by occupational physicians on the return-to-work of workers with common mental disorders: design of a cluster-randomised controlled trial

Table 1 Collection of data and time path

Topic	Instrument	Baseline	Follow-up
		T0	T1	T2	T3
		T0	3 months	6 months	12 months
Primary outcome
Full RTW	Registration system of the occupational health care service	X	X	X	X
Personal characteristics
Gender, age, level of education, diagnosis by OP, sick leave in the previous year, history of mental disorders, expectations about full RTW.		X
Work characteristics
Type of function, number of working hours, contract type.		X
Job content	JCQ	X	X	X	X
Secondary outcomes
Partial RTW	Registration system of the occupational health care service	X	X	X	X
Total numbers of sick leave days	Registration system of the occupational health care service	X	X	X	X
CMD symptoms	4DSQ	X	X	X	X
Burnout symptoms	UBOS	X	X	X	X
Workability	3 questions of WAI	X	X	X	X
Additional outcomes
Coping	Shortened 19-item version UCL	X	X	X	X
Self-efficacy	RTW-SE	X	X	X	X
Remoralization	RS-12	X	X	X	X
Experienced barriers, facilitators and social support for RTW		X	X	X	X
Experience and satisfaction with OP	Adapted version PSOHPQ	X	X	X	X
Experience and satisfaction with supervisor		X	X	X	X
2 months after inclusion
Experiences supervisor
Contact with worker, sick leave worker, work adaptations, contact with OP, CMD and sick leave, policy on sick leave and RTW			X
Personal characteristics supervisor			X

ISSN: 1471-2458