Table 1.

Overview of the three rehabilitation programs

	Long multicomponent program	Short multicomponent program	ACT comparative arm
Setting	Inpatient rehabilitation center	Inpatient rehabilitation center	Outpatient Hospital clinic
Duration	3.5 weeks	4 + 4 days, separated by 2 weeks living at home	6 weeks
Contents and quantities	-group discussions (×8, total 16 h; ACT based)	-group discussions (×6, total 12 h; ACT based)	-ACT group discussions (×6, total 15 h)
	-psychoeducational sessions (×4, total 6.5 h)	-psychoeducational session on stress (×1, 2 h)	-group discussion on physical activity (×1, 1 h)
	-individual meetings with coordinator (×5, total 5 h)	-individual meetings with coordinator (×2, total 2 h)	-individual sessions with social worker (×2, total 2 h)
	-individual meeting with physician (×1, 0.5 h)	-individual meeting with physician (×1, 0.5 h)	-individual session with social worker and ACT group moderator (×1, 0.5 h)
	-mindfulness sessions (×7, total 3.5 h)	-mindfulness sessions (×4, total 2 h)	-home practice, including daily mindfulness
	-individual/group based supervised training sessions (×10, total 12 h)	-individual/group based supervised training sessions (×8, total 10.5 h)
	-“walking to work” (×6, total 3 h)	-Create RTW-plan
	-Create RTW-plan	In the 2 weeks between the stays at the rehab:
	-outdoor activities day (×1, 5 h)	-Meeting with employer, if relevant and permitted
	-“network day” with 2 group sessions (total 4 h)	-At least 2 contacts with team coordinator (telephone or personal)

All references to time are average estimates, which may include short breaks in and between sessions. ACT: Acceptance and Commitment Therapy. RTW: Return-to-work.