Table 1 Overview of the measures and corresponding time points

SCID-I*

Diagnosis of (recurrent) MDD

●

●

●

●

●

●

IDS-C

Current depressive symptoms

●

●

●

●

●

●

CSRI

(Mental) health service use

●

●

●

●

●

●

MMAS

Medication adherence

●

●

●

●

●

●

RRS

Rumination

●

●

●

LEIDS

Cognitive reactivity

●

●

●

FFMQ

Mindfulness skills

●

●

●

SCS

Self-compassion

●

●

●

WHOQOL-bref

Quality of Life

●

●

●

EQ-5D

Quality of Life

●

●

●

●

●

●

NEO-PI-R

Personality

●

●

MAAS

Daily awareness/attention

●

I-PANAS-SF

Positive and negative affect

●

Calendar

Mindfulness and medication adherence, absence from work and health service use Monthly during 15-month study period