A blended module (STAIRS) to promote functional and personal recovery in patients with a major depressive disorder in remission: study protocol of a concurrent mixed methods randomized controlled trial.

If there is no significant difference in the level of recovering quality of life between STAIRS and the control group at the 6-month follow-up (T1), but a positive trend is visible, we will model a future expectation with a best case, conservative case and worst case scenario.

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