Table 1.

Overview of the follow-up assessments of the participants

Measures	Description	Baseline	Week 1–10	3 months	6 months	12 months
HRSD-17	Depressive symptom rating	X		X		X
EMA	Daily real time ratings of emotion, affect and events		X
SCID-I	Diagnosis of current depressive disorder	X
QIDS-16	Depressive symptoms rating		X
WHODAS-II	Functional impairment and activity limitation	X		X		X
EQ-5D	Health status	X		X		X
Daily activity section of Leidsche Rijn Health Questionnaire	Regular daily activities	X		X		X
Treatment satisfaction				X		X
TIC-P	Direct and indirect costs			X	X	X
Demographics	Socio-demographic characteristics	X
Resource use	Medication use, number of referrals and GP consultations					X

HRSD-17: Hamilton Rating Scale for Depression, 17 items

EMA: ecological momentary assessments

SCID-I: Structured Clinical Interview for DSM disorders

QIDS-16: quick inventory of depressive symptomatology, 16 items

WHODAS-II: WHO Disability Schedule 2.0

EQ-5D: EuroQol five dimensions questionnaire

TIC-P: Trimbos and iMTA questionnaire on Costs associated with Psychiatric illness

GP: general practitioner